Ok, I've checked mainline ubuntu kernels as of today:
WORKS 5.15.110 linux-image-unsigned-5.15.110-0515110-generic_5.15.110-0515110.202304302037_amd64.deb
BROKEN 5.16rc1 linux-image-unsigned-5.16.0-051600rc1-generic_5.16.0-051600rc1.202111142330_amd64.deb
Ok, I've checked mainline ubuntu kernels as of today: unsigned- 5.15.110- 0515110- generic_ 5.15.110- 0515110. 202304302037_ amd64.deb unsigned- 5.16.0- 051600rc1- generic_ 5.16.0- 051600rc1. 202111142330_ amd64.deb
WORKS 5.15.110 linux-image-
BROKEN 5.16rc1 linux-image-
so rc1 changes of 5.16 broke something here
PS and it's still broken on 6.3.1