Link: https://tauonmusicbox.rocks/
For podcasts and radio, you'll need another program. But this is the closest any player has come to the Windows-only MusicBee masterpiece. Via Wine, I've been using MusicBee since I switched to Linux a few months ago, but it was tedious to set up.
Tauon Music Box has the best search I've ever seen, just type anywhere and start playback with left click or jump to song/artist/album with right click. It also has a great way to write filter and sort queries for custom libraries (the same as playlists here). F5 shows the current cover and song name in "fullscreen" with a frequency spectrum visualizer.
Screenshots from my library with custom settings:
I also consider using it to play my audiobooks, because you can separate playlists to scan separate folders and not get music and audiobooks mixed.
Thanks :)
Seems like it might be at least a partial answer to my preferences