I recently upgraded to tvOS 14.6 to try to correct a problem I was having, and now many of the games that I have no longer work properly.
Some examples are the Remaster Ducktales, Paw Patrol, and some others.
I tried redownloading a few of them and restarting the Apple TV.
Maybe another tvOS might fix them, but I have doubts. Really sucks if they are permanently broken.