While I wouldn’t mind it if it’s worth the time, I recently played around with Audacious with skins and found a skin that made it look exactly like winamp. I can’t move jt around in KDE Plasma 5 in Wayland, but it does work well in Enlightenment 0.26 on X11.
I’ve used so many other FOSS solutions to replace winamp at this point, and they’re all functionally the same. I remember liking the interface of Clementine at some point, but honestly I don’t think I have any loyalty to any specific music software anymore.
Been using Foobar2000 since '03 (and now on mobile too). No need to change back.
I hope they get all the skins working, and it becomes popular on Linux.
The sad thing about this is that 90% of the skins available for WinAmp since then are gone. You can’t find them to download them anymore.
There is Winamp skin museum - https://skins.webamp.org/