Btw, I watched this video https://www.youtube.com/watch?v=M4o3E1Yjvp8 it's an Android TV
Someone in the comments on youtube says: "They actually do more than pay the bills with those buttons on the remote. I've heard that at least Netflix and Disney+ will outright not allow their apps to be pre-installed onto a TV if there is not a dedicated button for the app on the remote. So if Sony wants to include Netflix, Disney+, or other major streaming services on their internal OS, they usually have to include that button on their remote."
This screams like an anti-competitive practice.
For my last major TV purchase, rtings.com was the most useful resource I could find for understanding the differences between options at the size I was looking for. They also have good roundups of the best overall TV brands¹, as well as regular roundups of the best options in several categories (size, primary use, etc.).