Still, linux desktop is going up, with a fraction of the marketing power Windows and Apple have.

This isn’t entirely true. Linux is getting a lot of help from Microsoft. <wink wink>

A bit cumbersome if you are traveling and using a different public wifi every time though

You’re not wrong. But you’re probably also familiar with the “secure vs. convenient” dichotomy: the closer to the “secure” end of the spectrum you get, the more cumbersome things will inevitably get. If you feel like you’re jumping through too many hoops and you don’t know what for, chances are you’re overshooting the target in terms of your threat model and might get away with doing less.

1. Disable DNS once. Find out URL/IP of captive portal that way.
2. Add to hosts file (Win/Lin/Mac). Maybe even give an alias: “captive-school”, “captive-library”, etc.
3. Turn DNS back on. The hosts file will take prerogative over DNS settings, i.e. it is resolved first.

You are correct, it seems to have supported it for a while now, but it got more support now.

I’m afraid MusicBee is not for me since my household has been powered by Linux only for years now. I’ll look into that beets plugin though, which has been recommended to me somewhere in the comments before. Thanks!