Push to talk keybind not always working

I have a problem with press to talk since a very long time, I wanted to change my associated key about 4 years ago on the middle mouse button (wheel), taking care to remove the other key assignments and each game I join I have a 50% chance that my key doesn’t work and I have to use the old one (²) (I have an AZERTY keyboard) that is no longer supposed to work. Since Overwatch 2 and the ping system, not only my problem persists but now the click ping wheel has the place to activate my mirco… it’s very annoying. I already saw many other posts on this problem, written a long time ago, Blizzard pls fix this i’ts been more than 4 years now…