Catalina is a dumpster fire compared to Mojave.

Waking up a Macbook Pro with two USB-C monitors plugged in, only one monitor comes on. I have to fiddle around by opening the laptop's lid or pressing Ctrl-Shift-Eject and waking it up again from scratch for all the monitors to respond.

Leave Catalina running too long, its Watchdog process times out and it has a kernel panic. During the night every two or three days. After booting and reporting to Apple (again), it's time to rearrange all the windows and reopen all the documents I was working on, again.

Inadequate is the polite way of describing it.