I saw this in another thread. It fixed my "Recompiling Script Assemblies..." problem. Just thought I'd share here... Using 2021.3.6f1. This worked for me. I was at 20-60 and am now back down 3-8ish. I believe it's due to the Auto-Refresh (when you click on the Editor Window). Instead, you can manually reload them (Ctlr+R).