You can for an excessive price. Most commercial outdoor-rated panels are just simple HDMI or network inputs.
Nonsense. Buy an LG TV of any kind. Never connect it to the internet. Plug in an Apple TV (or Linux HTPC box of your choice). Ad-free TV at consumer prices.
edit: not just OLED
Why even buy a TV? Buy a screen and a projector.
TVs are more compact for smaller rooms, brighter in sunlight.
Apple TV kind of has ads in the form of their streaming service. Not egregious yet, but it gets worse with every iteration.
If you move the tv+ app down from the top row, you should never see it.
Unfortunately I've purchased movies from iTunes over the last ~15 years.
Pretty sure all new TVs have HDMI CEC, so you can just buy any TV, connect it to a $100 to $150 Apple TV/Nvidia shield/google thing or whatever and have no ads (from tv manufacturer).
Nope, at least last I saw around 2021, Samsung and LG were moving their commercial displays to include Tizen and WebOS as well.