I don’t really need first party support though, as long as the OS in question has that kind of universality. I can grab Fedora or Mint or whatever and it’ll run more or less perfectly on any generic PC box I happen to have with a little effort.
It’s a much better situation than what we have with Android where outside of model-specific ROMs like Graphene, whether or not you can run a ROM on your phone depends on the model specific build (which has a decent chance of having been uploaded by a high schooler) existing and continuing to get updates. It’s a mess.