Sorry for the delay.
Unfortunately, it looks as though I have unintentionally misled you because I am using this laptop more as a desktop. The dock does not do what it was designed to do, although it is great for my current needs. Sorry for getting your hopes up.
After many trials, I have found consistently that after hot-unplugging, the monitors reorganize correctly and things work (such as notifications) for about 10 sec. Then the computer goes black, restarts, goes through Clover, and then a KP. Restarting after the KP makes the dock work again.
Hot plugging works better, but not consistently. Strangely, I booted in Win 10, the dock worked fine, but upon booting back into Catalina, the dock's USB didn't work. USB was restored by a Catalina reboot.
I have attached my pmset output.
