audacious VS quodlibet

I usually just use mpv since it's the simplest and most flexible. You might be looking for something like Audacious though, which is great too

Audacious is a more popular media player app that supports Winamp skins and a media library.

This may interest you,and it is Qt,plus can be used with MPD. https://audacious-media-player.org/

the new version of audacious has a vu meter and its also available to windows https://audacious-media-player.org/

Audacious audio player.

Find a GUI player you like (see https://wiki.archlinux.org/title/List_of_applications#Graphical_13 for a non-exhaustive list; ISTR Audacious being mentioned as a Winamp clone) and add it to your autostart items (see https://wiki.archlinux.org/title/Autostarting#On_desktop_environment_startup).

Yes, Winamp works well on Linux through wine, I have been using it for a long time myself. Although recently I have also been using audacious, which runs more smoothly and is better integrated with Linux (as it is a native application) and it also has support for Winamp skins, so it's a fairly good drop-in replacement (as long as you're not relying on some esoteric plugins or file formats).

im not the parent commenter but i highly recommend audacious for linux and windows. plays every audio format you have, doesn’t enforce a specific music library folder structure, and supports winamp skins(!) https://audacious-media-player.org/

Effectively succeeded by Audacious:

https://audacious-media-player.org/

... which is under active development/maintenance.

A shameless plug, but you may also like Quod Libet[1]. Although not for everyone, it has very advanced searching and the more unusual integrations and features all implemented as plugins.

[1] https://quodlibet.readthedocs.io

Check out QuodLibet https://github.com/quodlibet/quodlibet

quodlibet is only closest thing I found that I can tolerate.

If you want a desktop app that can run on Windows or Linux or MacOS, I recommend Quod Libet (https://github.com/quodlibet/quodlibet)

missed Quod Libet, https://github.com/quodlibet/quodlibet, best Music app replacement so far

Dont know what this means, looks like QuodLibet is licensed under the GNU Public License: https://github.com/quodlibet/quodlibet/blob/master/COPYING

i used this really nice music player and library manager called Quod Libet which is written in python. now, that app isn't exactly the one with fast development cycle (latest release was on march 2021), and python3.10 release was nearing

Quod Libet works well in my limited experience. I don't use it for extensive things besides playing music, making playlists, and such. It fits your qualifications by the standards I just mentioned, has a GUI, and last contribution on their github seems to be 9 days ago for the docs, and 15 days ago for code related materials.