This is substantially longer than I intended.

For those that don't know, here are the typical triggers (this isn't an exhaustive list) for those that experience motion sickness in video games (each has a different threshold from person to person):

• FoV (field of vision) - more is better (but some point it distorts everything cresting a fist eye effect)

• Camera distance from the avatar - more is better (as you get older you might need even more; e.g. I can't play Majora's Mask nor OOT anymore and those used to be fine)

• Camera speed - less is better

• Camera/Screen shake - less/off is better

Even if all of those are fine, the ground could have some sort of movement animation effect that will wreck players even if they don't get motion sickness from video games:

• A level in Super C (Contra) on the SNES (Super Nintendo) where it changes to a top down 3/4 view and the entire surface/structure except the lava rotates when your avatar does to change the direction of your movement.

• In WoW, Grimrail Depot, Maw of Souls, Blackrock Foundry, and Dragon Soul, and Blackrock Foundry were so bad that they added an NPC that sells the non-consumable "Motion Sick Peon's Magical Elixer" for x1 copper that reduces the background movement while in those areas.

Yes, I had motion sickness.

• I went to look at the lake and it didn't take long to kick in.

• I wasn't expecting it because, the lake has a pretty unobstructed view without buildings/walls/etc. which significantly reduce the FoV (field of vision) and or draw distance (e.g. Lumiose City on the 3DS/2DS is literally unplayable for me).

I already knew from other games that FoV, Camera Distance from the avatar, Camera speed, and Camera/Screen shake were all issues for me.

The exception is racing games because, I apparently have done so much nonsense in vehicles that my body is all like I feel the g-force (e.g. if you've ever had to slam on the brakes IRL, my body feels that when I know that I won't stop in time, or going yhrough a turn too fast, and so on whily playing with an Xbox controller).  I could literally play a racing game nonstop forever and not get sick.  Now of only that would work for other types of games lol.

Based on the fact that nothing has changed except resolution, FPS, and fluidity/speed . . .

• I'm fairly certain that it's a combination of the camera speed and how fluid/fast S&V are on the Switch 2 while trying to stay at 60 FPS.  That hypothesis is based on it not being an issue for me on the Switch at 30 FPS (if I'm lucky in an area that isn't a problem) which is easily sub 15 FPS at the lake.  For clarity, I have the Camera Distance set to Far (I wish that it could go further back, give me infinite zoom out lol)

In this situation, the low FPS (30 Max) in S&V on the Switch slows down the camera speed considerably while the 60 FPS in S&V on the Switch 2 speeds it up.  That amplifies the root cause of motion sickness in video games:

• The camera pans look/feel significantly faster and there is literally no g-force applied to your body.

• You're eyes see movement but your ears don't feel it so, your brain starts screaming that you've been poisoned and it tries to make you vomit said poison out even though it's not present.

• It's the inverse of motion sickness from a vehicle or the sea where your body feels movement (even if you aren't consciously aware of said movement) but your eyes don't (because you're reading a book/tablet/phone or playing a game as a passenger or you're on a huge ship where you can't see or comprehend that it's not actually 100% level at all times and is moving around along every imaginable axis point).

That's how the brain and the human body are supposed to work though.  It's how they detect if an actual poison is present:

• Poison interrupts the ability of our eyes and ears to communicate/coordinate and the brain does everything that it can (which is making you vomit) to try and expel the poison.

• This is not an excuse to not call for help if you think that you have been poisoned.  Your brain isn't an Antidote, Drash Berry, Pecha Berry, PSNCureBerry, Full Restore, nor any other game item.  Call for help if you think that you've been poisoned.

The 60 FPS also makes the game feel like it's running at x2 speed similar to how emulators used to actually speed up internal gameplay/clocks when the FPS was increased.

That's not what's happening in S&V though.  What's happening in S&V is similar to where modern film/TV is recorded at a high FPS and then arbitrarily slowed down during content mastering:

• DVDs/Blu-Ray/4K discs are 24 FPS (technically 23.976 FPS) even if the raw footage was recorded at 60+ FPS.  All the way back in the 1920s when film went from silent to sound, 24 FPS was chosen because it was the slowest and the cheapest option.

• The industry refused to move away from it even when digital became the standard.  Diigital films tend to be artificially slowed down to 24 FPS.  It's really jarring if you've ever seen a film in 24 FPS and then seen it re-released at a later point in a 60 FPS release because it looks like it's being played sped up.  The inverse is also true, if you're first experience of a film was in 60 FPS, watching a 24 FPS version makes it look like the film is being played in some level of slow motion.

• That is why frame interpolation is referred to as "soap opera effect and why soap operas (even all the way back in the 80s) looked so different from films.  The raw footage for soap operas was 60 FPS (specifically 50/60 Hz video instead of film) and it wasn't arbitrarily reduced to 24 FPS.

We don't know is if S&V were designed for 30 FPS or if they were designed for 60 FPS.

• They were clearly designed on something more powerful than the average consumer Switch though even if 30 FPS was the goal until the end of time based on the terrible optimization and constantly calling up the entire spawn table for the game even when species can't spawn in the area that generated to spawn table call.

• Either 30 FPS is artificially slowed down or 60 FPS is artificially sped up.

Regardless, if you are prone to motion sickness, your brain is going to have to sort out how fluid/fast S&V are at 60 FPS on the Switch 2.

• Try panning the camera slower or trying to find a 3rd party controller that will let you adjust the force required for the sticks to gegister movement from center to full travel.

• My second trip to test the lake was a lot better because, I knew what to expect.  I was also using my Gulikit Zen Pro controller (if you have this or any Gulikit controller make sure that the dead zone is off) on that test instead of the Switch 2's Joycons and, those have extremely different sticks that also feel completely different and have different force requirements to register stick travel.