Thank you! And yes I still have more plans for the studio, but having it painted and the new desk was the main thing.
Just like you though, I kind of ignored Pop-OS until now and it's surprisingly very good.
I'm sort of stuck with Ubuntu 18.04 on my main computer though just because I have so much software set up and configured. I know if I switch there's going to be something that I need that isn't going to work. Most likely something related to music software, but there's always something.
And yes, Pipewire was a shock at first. I'm just so accustomed to routing stuff from JACK out to Pulseaudio and back in etc and so forth. I'll have to look into qpwgraph though.
I didn't even realize I could use QJackCtl and Calf without having Jack 1 or 2 installed though, but that makes sense and I'm glad you mentioned that because I'll have to do some more testing.
But now thinking about it, don't those have Jackd as a dependency?

Some other distros I'm thinking about testing are Zorin, Endeavour OS, Nitrux, and maybe even Garuda and Solus.