I ran into erratic mouse behavior after a reboot. A Logi+ update installed itself just after the reboot.
I've tried to install older Logi+ versions, including 1.44, which does not help. I'm not sure if this is related anyhow, but the issue was eventually resolved by power-cycling the Dell WD19DCS USB-C docking station (which is a 100% ****, just as all USB-C docks are, AFAIU). The thing is - maybe Logitech can provide a warning for the "Poor USB connectivity" if the USB-C transfers are too slow and erratic. Maybe not a 100% automatic detection, just a "troubleshooting mini-app" or something - an app that would detect the mouse-PC connection latency and jitter and show results to the user.