Motu M4 - where to report this issue?

[Georges Basile Stavracas Neto]

Greetings ALSA community,

I recently acquired a Motu M4 interface, and seems to be working
well so far. Everyday usage is completely functional.

However, I noticed an odd sound artifact that happens from time
to time when using DAWs like Ardour and Waveform11. It's a windy,
ghostly sound that happens whenever I open any DAWs (the simple
act of opening them triggers this). Interestingly, audio apps that
use PulseAudio do not suffer from this issue. It's hard to describe
it, so I recorded a video reproducing this problem:

https://youtu.be/bM8x-YuXLVI

A few things I've discovered while trying to understand what's
going on:

 * It only happens with apps that use JACK or ALSA APIs. Using
   PulseAudio (through PipeWire) does not trigger it.

 * Seems like this sound is not an artifact of the interface; it
   appears that this odd sound is sent to the interface through
   USB. (You can see this in the video.)

 * It's triggered per track; in the video, for example, the drums
   and keyboard tracks are affected independetly.

I was oriented in #alsa at Freenode that the output of 'alsa-info'
might be helpful, so here it is:

http://alsa-project.org/db/?f=62f686710cc6c9344a8986707bf3d09248c514d1

(I'm running this on top of a 5.12.5 kernel, which should include
 this fix: https://bugzilla.kernel.org/show_bug.cgi?id=207023)

I'd like to know where should I report this bug (kernel bugzilla?),
and if there's any other information I can provide to help fixing
it.

With respect,
Georges