The package involved is alsa-ucm-conf, version 1.2.2
It does not contain the UCM2 configuration files for the sound card chtmax98090, which have been added upstream.
Because groovy has alsa-ucm-conf 1.2.2, the bug is applicable for 20.10 too.
In Debian unstable and testing is available alsa-ucm-conf 1.2.3, which contains the missing UCM2 files.
The package involved is alsa-ucm-conf, version 1.2.2
It does not contain the UCM2 configuration files for the sound card chtmax98090, which have been added upstream.
Because groovy has alsa-ucm-conf 1.2.2, the bug is applicable for 20.10 too.
In Debian unstable and testing is available alsa-ucm-conf 1.2.3, which contains the missing UCM2 files.