If you are talking about using Linux on a desktop, then use DigiKam for photo management. It is far more advanced, because it is a desktop application and been around a lot longer.
You could have a workflow of a desktop environment AND immich on the server for the best of what they both offer.
How simple is this program to use, I am moving to linux and while novie just want to start using my pc for pc things like storing my pictures.
If you are talking about using Linux on a desktop, then use DigiKam for photo management. It is far more advanced, because it is a desktop application and been around a lot longer.
You could have a workflow of a desktop environment AND immich on the server for the best of what they both offer.