I start qjackctl & jack at login, then at present start qsynth/fluidsymth manually ... that already has the JJazzLab sound font loaded ... I have yet to try others. Then I start wine->bbw64 from the Linux menu. Thus far I've usually(?) had to set MIDI to connect to fluidsynth and audio to the pulseaudio jack-sink. Whether these are the best settings is another matter. RealTracks sound better than the synth, of course.

I tried Timbres of Heaven, but on the few instruments I've tried so far, the JJazzLab font sounds better to me.

It's annoying that I don't know what, exactly, made it spring into life :-(

Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
.