jackd1 is mostly superseded in favour of jackd2, and as far as I understand,
can be ignored
pipewire-jack integrates well with pipewire and the rest of the Linux audio
world
jackd2 is the native JACK server. When started it handles the sound card
directly, and will steal it from pipewire. Non-JACK audio applications will
likely cease to see the sound card until JACK is stopped and wireplumber is
restarted. Pipewire should be able to keep working as a JACK client
but I haven't gone down that route yet
pipewire-jack mostly works. At some point I experienced glitches in complex
JACK apps like giada or ardour
that went away after switching to jackd2. I have not investigated further
into the glitches
So: try things with pw-jack. If you see odd glitches, try without pw-jack to
use the native jackd2. Keep in mind, if you do so, that you will lose
standard pipewire until you stop jackd2 and restart wireplumber.