Many people have reported Kernel Panics in the latest 10.15.6 version of Catalina. That would include yours truly. I have had a few Kernel Panics after installing 10.15.6. This article confirms the Kernel Panics and lists probable reasons why. Normally, when a new version of macOS like Big Sur arrives I recommend people wait a while before updating. But, macOS Catalina has been so buggy I can see people going to Big Sur right away just to get away from Catalina’s wonkiness.