Nolan doesn’t do atmos and Dolby vision. His beliefs about getting close to the imax version. All his movies are like this

i was in the same boat as you. had google tvs in every room (4k chromecast). so laggy, and slow I ended up buying 1 apple tv just for the main room. Now i have apple tvs in every room lol. So much better experience. its worth the price especially if you can get them for sales

Who knows. I bought 2 when Costco was selling them for $99

I have a series 7. Very tempted to upgrade but I use Siri like once a day so not sure if it’s worth it. Also don’t see any issues with the speed on a 7