I personally have had no crashes in weeks on my Mac Pro running macOS System10.15, Catalina. Ever since I upgraded my Mac Pro to 10.15.4 beta a few weeks back, I have experienced only one System Crash and that happened during a restart. Prior to this I was experiencing periodic crashes on a daily or weekly basis. I also run XtraFinder in the background as well, XtraFinder requires disabling SIP and hacks the Finder, providing additional features such as tabs, Enhanced Appeareance, Folders On Top, Automatically Adjust Width Of Columns, Dual Panel, Colored System Icons and many more terrific features. One would assume that running XtraFinder in the background would increase my chances of crashes. However, Catalina appears to have become the most stable macOS release that I can recall. Mind you, I do have a terrible memory. This is not a plug for XtraFinder, i just love the additional features I get when I run it.