Should I be aware of something when buying a TV?

Hey guys, so I moved recently and started tipping my toes in self-hosting, currently managed to set up Pihole and Jellyfin.

I'm thinking of buying a TV to start enjoying all these cool services over my living room. The thing is, I'm pretty much an absolute beginner, and I'm not sure if there is something I should be aware of when buying a TV.

Since it is a fairly big spend, I would really hate to be locked out of it because of some greedy corporate garbage or something, especially since I would use it only for self-hosting, and I am aware TVs are particularly messy when it comes to this (never have bought one in my life). Could you guys help this lost kid?