I keep hearing this from people but it runs terrible on my SD. Cannot get more than ~27 fps and it regularly dips below that.

Did you tweak the settings somehow?

I previously played it on my Xbox and had a great time. Would love to play it again on the SD eventually.

I switched from Android to iPhone a month ago and the Nextcloud app can definitely access & sync all photos & videos just fine.

So far I have not noticed any problems with background sync but I do also open the Nextcloud app frequently so that might have something to do with it. I guess a workaround could be to set up a shortcut which opens Nextcloud whenever the phone is connected to a charger during the night, for example.

Lastly I just want to add that it isn’t all sunshine and rainbows on Android either. From my own experience photo sync never worked reliably on whichever phone I was using (Huawei, LG, Samsung, Google, Microsoft, …). And let’s not forget that each manufacturer is also trying to push their own gallery & backup solution to lock you in. Even worse, some manufacturers like Microsoft have this mishmash where you have OneDrive for photo sync but then also Google Photos which you can’t uninstall and keeps begging you to please back up all your stuff and then pay for more storage. It’s the same BS as Apple with their iCloud tbh.

What about OneDrive or NextCloud? They offer photo uploads

ICYMI the “simple” apps were sold to some shovelware company and will require a subscription soon (or maybe they already do). So you might want to look for an alternative if that’s what you are using.