Often because they’re profiting from it themselves.

You could look at trying immich. I haven’t set it up yet, but it seems to be the solution to me moving away from Google photos. https://github.com/immich-app/immich

You can find more info on these

https://matrix.to/#/#selfhosted:selfhosted.chat

https://forum.r-selfhosted.com/

https://discord.gg/UrZKzYZfcS