CS2 freezes; does not launch on Linux mint 21.3

[SerSerg]

Your system information

My system:
Linux Mint 21.3 Cinnamon
GeForce GTX 1060 3GB
nvidia-driver 535

Please describe your issue in as much detail as possible:

Since an update in early June CS2 refuses to launch: it freezes at valve-logo screen and does not launch further. -sw and other options do not help. Also different (up- and downgraded) nvidia-drivers brought no change, neither helped re-installation of the game and of the steam client (deb-version).

I run a native linux version via steam but if I activate Proton 9 or experimental, the game starts normally but I can not join servers due to VAC (unfortunately this is normal with proton). Launching cs2.sh via terminal does not reveal any obvious errors: the script simply hangs forever after the line "Loaded libmpg123.so.0, got 0x578e8a758160". Has anyone a suggestion except waiting for mint 22 and hoping it works then?

Steps for reproducing this issue:

1. Open steam client
2. Launch the game