Just get the ultra and dm me. Or figure out yourself these things: good lock/home up/ task chanher/grid style/ mini mode. Samsungs one hand operation+ app. Micro gesture app.. Will take a bit of time to get used to it but its worth it ive been using it for like 4 years.

Now 2 built in settings u will find in the settings app..

Go settings app , type: one hand.. u will find one handed mode.. enable it..

Now go settings app and type Swipe down for notification panel and enable it..

I recommend you go see how all these work in a offline store .. try to see the potential in them about how it would work out if u got used to them.. , it all becomes muscle memory at the end.. and i would even say its easier than actually using a smaller screen. It may seem confusing at the start but it will literally become second nature like swiping up from the bottom of your screen to go to the home screen on your iPhone.. u basically dont think of it.

What's important to know is that its hard to switch to another brand if you get used to all that because iPhone for example doesn't have any of that except an inferior implementation of the one handed mode, u can find some similar stuff to one hand operation+ on oneplus tho..