Can you also include these:
arecord -L && inxi -A
I see a lot of sound issues on Noble, with no solutions yet.
Some have reverted back to “pulseaudio” with some success.
Other’s are still suffering. 
Also maybe some of this may help.
https://askubuntu.com/questions/1515538/fixing-no-sound-dummy-output-issue-in-ubuntu-24-04
There should not be a need to down grade your kernel, so skip that part.