Mac Studio sluggish and beach balling intermittently in DAWs.

the most egregious issue is that your boot drive is FULL. You have under 20 GB available.

Major Issues:

  Anything that appears on this list needs immediate attention. 

  Low disk space - This computer is running critically low on free hard drive space.

for reference, MacOS consumes over 9 GB going from cold start to up-and-running.

you have cutting edge hardware.

if reaper is slow, are you running latest version?

if not, you may be looking at bugs the developer has already seen and solved.

Is both Logic Pro and Reaper on their latest versions?

Oh, then it's most likely not that then.