Hi, I am facing same issue. Android 11 and Switch Lite - Left stick constantly drift upwards // checked also with gamepad tester app. Spoted in Parsec (even there in menu still drifts upwards). Also then in games in Parsec...

Tested also with Moonlight - same behaviour. For comparsion I install latest Moonlight-Switch(for Switch OS) - and there is no issue with sticks. So it's obviously issue with Android 11. My sticks are OK from HW point of view.

Also vote for fix this, please. No problem to contact me, with help to debug/test this issue.

Thanks.