The whole point of the arrs is to download things in advance. Many users set up Import Lists… There are also apps like Boxarr.

Netflix’s model is to provide the cheapest, low-quality media you can bear to watch. The kind of browsing you are describing is your distressed search to find something watchable. If you populate a server with good TV or at least TV that interests you, you won’t want to hop between media like that.

As others have said, 1 GB RAM isn’t enough. It also isn’t a good deal. You can get old NUCs for $30-40 with 8 GB.

It is a 45 Drives Stornado F1. A similar used chassis would be a Dell R730xd

I would set up a media server in the old case that fits your drives but set up the game servers on the lenovo.

Plex is fine for people that already have it set up but since you’re starting from scratch why not start with the free one?

Have you already bought a HexOS license? You can do more with Proxmox or TrueNAS for free.