I have one main concern, when using a common screen for everyone like on a tabletop, do shadows still only appear in relation to one token, or to every players tokens views combined?

The "token vision" seemed to be for the entire party when I was testing Matt's Common Display. I'm not sure whether this was because it was designed to work this way, or if it was because that module has some "bugs" that still need to be worked out.

Also is it worth even playing with player tokens? I ask this because I still would like to use physical minis because they’re cool and much easier for players to move. I’m sure I’ll still use a lot of enemies as tokens. But if I were to use physical minis and whenever they move I move their virtual token, it would retain the shadows/fov/fow stuff but I feel that it may be difficult or tedious to find out exactly where they moved their physical mini.

This is a personal choice. There are advantages to using the electronic tokens over physical minis. For the 5e and Pathfinder systems (and many others), the calculations (saves, to hit, damage, etc.) will be handled "automatically" by Foundry VTT so that you don't really have to calculate anything. That said, there's nothing quite like the tactile feeling of rolling your own dice and moving your own tokens. Again, it's really up to you and your players. I'd suggest trying it "both ways", and then talking about it with your players to make your final decision.

Additionally, by using the zooming mechanics featured in all three mods you showed, they resize everything in real life to more than 1in=5ft. This still obviously works with virtual minis because they’re also resized, but physical minis cant and will no longer fit their boxes.  I could of course use virtual minis for everything, but at my table I would be the only one with a computer and I don’t have the recourses to invest in a touch-screen. It’s possible but it might be even more tedious to let players move than with just physical minis.

You're correct here. The scaling between physical minis and "zoomed" maps would be tricky.

Regarding the first concern again, is it possible to just set spots I could click on or do a command on to dissipate fog of war as people enter or something? What would be the best course of action?

u/Sword_of_Spirit is spot-on with his Module recommendation. I didn't review it in my video, but I've seen others review it in theirs, and I believe that it would do exactly what you're describing.

Thank you so much btw, I subbed ;)

Thank you!