On the other hand, VLC goes out of their way to give updates to users of old OS versions. Why won't Google and Microsoft let them do it? According to VLC there

On the other hand, VLC goes out of their way to give updates to users of old OS versions. Why won't Google and Microsoft let them do it? According to VLC there are still millions of users of outdated Android TV and I agree with them: it's unreasonable to ask all these people to buy a new TV if it's still working. I get that manufacturers don't update the OS for more than n years (if at all). I get that some developers decide to not deliver updates for OS older than n versions. But wanting to deliver updates for these users should not be impossible.