On nextcloud you'll get opinions that it either works perfectly fine or is the slowest thing ever. My experience is the second one and I had it on an RPI4 as well. Well, it wasn't terribly slow but not fast either. And for photos it wasn't useful at all, there is some app, I think called memories? Came out some time ago, that one worked better, but not great either.
Don't recall details anymore though because that's when I installed Immich. I was worried the machine learning is too much for the pi, so I switched it off, but never tested if its necessary. Other than that it works great.
People will criticise there are tons of upgrades, but then you don't need to update all the time. Just watch the changelog before updating.
To me this looks like a hotel room.