Does anyone know if it’s possible to achieve this? Possibly with an external service that syncs the two?
Basically, the last feature immich can’t do that google does is to share albums. Sometimes my family wants to have albums after events, and my ones live in a silo.
Choice is good.
Your opinion restricts more options I might want.
OPs opinion does not restrict the freedom you require from immich.
Thus: Your argument (beyond your own setup) is invalid