A million times this. But now the backend is done, hopefully mobile isn’t that far off.

Install both. An RPi4 can handle both. Immich for photos and NextCloud for your files.

Indeed, but it’s considered a very good box. Hence I would still look at the UK rebranded version. Shame they’re not as cheap as the Walmart versions.

The way I’d do it is to use the box to run a Jellyfin client and run an IPTV app, I’d have the box connect to my router which would route it via a VPN and then I’d pretty much never think about it again. But there’s more traditional methods available.

The Onn Box is considered amongst the best in class, but it’s heavily Google. Honestly in terms of smart TVs, there’s not many options outside of Google if you want the best functionality.