Hi!
I have massive problems with my Logitech M705 - Or specifically with
the left mouse button. Sometimes (very often) singleclick becomes
double-click, dragging items is very hard, it drops the drag before I
release the mouse button. Clicking on the terminal icon in my xfce
panel often starts three terminals. The weird thing is that mouse
movement and the mousewheel works just fine. No problems there of any
kind.
This is independent of which program I use - in Claws Mail, the
Chromium browser, and also in virtualbox and Steam games.
This is on an up to date Debian 11 Bullseye (just upgraded to the first
point release), Xfce desktop, Nvidia graphicscard using the Nvidia
drivers on Xorg. All packages up-to-date with Debian 11.1.