I just got a PS5 and there are bunch of media apps available. I was looking at moving my AppleTV to a different TV and just using the PS5 on that screen.

On Apple platforms, for most of the things mentioned, web apps are an option and don't have any restrictions. This was Apple's original plan, but the people fought for local apps. Now companies fight for space on people's home screens. If they get an app on the device they can get more info and send notifications and things, which they apparently love. A lot of apps these days are glorified web apps. There are also the ones that exist for a one-time setup, which then sit on people's phones for years. It's kind of a mess the way companies use apps.