And if this is a kernel issue, how is it that it didn't take a kernel update to cause it? It was working before the update with the same kernel, why would it stop? Strange.
It may have been a perfect storm of e.g. a previous kernel upgrade which introduced a condition that a later audio or firmware upgrade triggered.
There are a BUNCH of things which can affect audio. A weird combo could have brought some odd issue that caused the problem. It looks like the kernel team is aware of the issue, and I expect it either has been, or will soon be fixed, according to "ja" who posted on this thread.
If not, please file bugzilla reports at https://bugzilla.redhat.com/. See https://docs.fedoraproject.org/en-US/quick-docs/howto-file-a-bug/ for details.
Thomas