@kirby @maija
Newer more expensive input devices are utter garbage, I have original Razer Deathadder 3.5G still in perfect condition, the only gripe I have about it is that rubber coating of the scrolling wheel got a bit yellow with time, instead of remaining white, but it doesn't prevent it from working.
At the same time I have three (!) newer Deathadders — each with some kind of problem 🤦