Im wondering what kind of tv to look for?
IMO 4k is useless because the network where I live is bad and 1080p is good enough. I don’t think smart tv functionality is a thing to look for, more like a « what not to look for » criteria.
What other criterions should be taken?
Avoid Samsung TVs, they will wait until your return window is closed and then start showing ads. Buggy, ad-ridden garbage.
I will never buy another Samsung thing. Except flash disks I guess are fine. Hard to jam ads in there, lord knows they are surely trying to, tho.