I have to use Windows at work, but I can use WSL on the developer laptop. Also I develop for/on Linux servers via ssh, so it’s good that I know Linux from home.

Keepass2Android can use an sftp server. If something was changed on the desktop, Keepass2Android will ask if it should merge the changes.

You forgot the -print0 at the end of the find command. In the read -r -d '' you want to read NUL-separated strings, so you must tell the find command to also use NUL characters between the filenames.

I found uPnP is not advised due to security risk

There are different uPnP things: one that lets apps open ports in your router (security risk) and one with media renderer (safe).

You said you/I/everyone can use multiple shells, I said: no, I can’t, at least not on all the machines that I have to use.

Some people work on machines where they are not allowed to install anything.

There’s jc (CLI tool and python library that converts the output of popular command-line tools, file-types, and common strings to JSON, YAML, or Dictionaries).

Landliebe

I didn’t know that, thanks for pointing it out!

If you’re not allergic to Amazon, a FireTV stick might be enough, at least for Jellyfin, Youtube/Netflix etc. (not sure about streaming from the browser).