Add me to the list. Installed Catalina last week, I have had these kernel panic crashes a couple times a day since then. Sometimes when screensaver starts, sometimes when I'm doing other stuff on the 15" MBP 2016. I just uninstalled all the apps that no longer work with Catalina, maybe that will help. Maybe a system software update will fix.
Unrelated issue, as you can see the spacebar randomly double-types on laptop keyboard, also a new problem but pre-Catalina. These butterfly keyboards are not very good.