Another alternative is Perkeep (formerly known as Camlistore) https://perkeep.org/ https://perkeep.org/ and there's even a tool to extract your pics from Google

Another alternative is Perkeep (formerly known as Camlistore) https://perkeep.org/ https://perkeep.org/ and there's even a tool to extract your pics from Google Photos https://github.com/perkeep/gphotos-cdp https://github.com/perkeep/gphotos-cdp and move them to Perkeep.