Installed Options+ after Options just stopped working correctly. Turns out Options+ has the same problems:
1. My MX Master 3 on Mac OS always stops working regarding Gesture button. Sometimes I still can open Mission Control Overview, but I can't use Left/Right while pressing to switch desktops. Sometime just nothing happens, sometimes I get an error sound.
2. Scrolling randomly stops working. It doesn't switch between natural and normal, it just stops completely...
3. Speed sometimes just resets back to 50%, instead of my 75% - I have to toggle the mouse channel from 1 one complete round back to 1 and most of the times it'll work again.
4. I started using the mouse without dongle, just BT. That worked fine for a week and suddenly, without warning, stopped working within Options+. The mouse still works, but as a default mouse in MacOS12. It's gone from Options+. Deleting the device from BT and then repairing it won't change...

This is not what I expect from the config-software of a mouse that expensive.