Seriously, one of the best things about the AMD Linux drivers is that you have direct access to the developers including a public bug tracker [0] and IRC [1]. Maybe not the kind of customer support people are used to but I honestly prefer this.

[0] https://gitlab.freedesktop.org/drm/amd/-/issues (I think this is the correct one now that FDO migrated away from https://bugs.freedesktop.org/)

[1] #radeon on OFTC - https://people.freedesktop.org/~cbrill/dri-log/?channel=rade...