I’m already hosting Immich, I feel it was the most painless to set up out of the three. There was a weird error with python modules with radicale and Nextcloud was a bit more complex to set up, but they were all relatively easy to get started with.

I particularly like Immich’s mobile app. I just clicked a few buttons and BOOM all my photos are backed up (you can even change what albums to include and exclude, and duplicates are automatically removed e.g. if you have the same photo in multiple albums)

they have an e/os version I think

I think it’s fine, with better compatibility with ms office files. LibreOffice is also great and is based in the EU I believe, so if you’re wary of the bear then that’s a great option.

The beauty of linux is there is options!

Different people prefer different things and you can freely choose between all the things!