Well that looks neat.

Not even technically, actually. Wine and proton are translation layers that basically provide a dictionary of system calls so that Windows-specific ones can be translated to Linux calls instead

Yeah, even with my relatively limited Esperanto familiarity (mi estas ankoraŭ komencanto, sed mi povas legi kaj skribi iomete), I was originally confused by it as well when I started using it a few months ago. Then when I saw the explanation on the faq, I just found myself wondering why the heck they used g instead of ĝ.

F-keys!

The solution for me is that I run Nextcloud on a Kubernetes cluster and pin a container version. Then every few months I update that version in my deployment yaml to the latest one I want to run, and run kubectl apply -f nextcloud.yml and it just does its thing. Never given me any real trouble.