Foobar is one of the greatest pieces of software ever and Linux music software only dreams it can be as good as Foobar.
That all basically ended -- instead of being an active process and participating in vibrant communities my music listening changed to just that, listening. The eventual switch to Spotify was much less dramatic for me. Sure it was replaced with something else to tinker on, but some of my fondest computing memories are thanks to foobar2000.
For this kind of library I found Audacious (minimalistic, supports Winamp skins) and QMPlay 2 to be good. The latter supports and remembers your folder tree, has a very cool widget system and can be also used for videos (music or otherwise).
At least for some artists, there's a huge number of show recordings out there. The guy who maintains the (unofficial, although known and tolerated by the artist) live archive for Nine Inch Nails is up to >1,000 recordings, for example.
I also use album artist a lot, though that's probably supported.
Also back then they had this concept of an "Inbox" for new albums, which was a special playlist of newly scanned music that you then could "move" to your library. It was good for vetting new albums before the era of streaming/YouTube.
Then I just ended up with lots of musical clutter in my library.
Linux, Mac -> cmus
Some may handle sample rate conversion better than others.
Foobar's FAQ says as much: https://www.foobar2000.org/FAQ
Not sure about linux, but on windows, macos, android difference is huge if you have some good DAC & headphones
I use it for like 15 years now. No other player is that versatile.
Client/Server, very stable, small resource footprint.
Recently I used mpd to play audiobooks and live radio streams on my headless server. MPD uses icecast to make the stream available in my local network so I can use chromecast and/or google assistants to listen to the streams. Its more or less running transparent in the background and iam very glad I found this solution.
What is the latency like? I tried something like this but there was so much lag between a remote control input and player state changes that it was unbearable.
Who is dreaming now?
With Linux you can setup a streaming server and stream your music across different devices.
You can automatically download covers and lyrics for each song and automatically organize and index your collection for search.
I did this in like 2008 already, on windows.
I like cli software, and should be drawn to beets, but yet...
but yet, i still paid 20 for mp3tag and i would do it again