You have misunderstood this. Saving a file from an image editor or viewer repeatedly will degrade it. Putting a single saved file in countless zips will not.

Workspaces? Don’t recall if it has its own icons

https://www.maketecheasier.com/how-to-work-with-workspaces-gnome/

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Face unlock

Oh, and look into port forwarding the Jellyfin on your router, so you can access it outside of your network for when you are in hotels. Then you could either connect via ip address or use something like No-IP to get a free hostname to point at it

Should be fairly simple.

You just need to get the NAS mounted on to the pi and then look at Jellyfin which is a nice front end for streaming video, would look much like Netflix or Disney+ kinda thing.