Comment # 16 on bug 1190412 from Carlos Robinson

I updated to 

cer@Legolas:~> uname -a
Linux Legolas.valinor 5.3.18-lp152.92-default #1 SMP Mon Sep 13 11:30:31 UTC
2021 (d83471c) x86_64 x86_64 x86_64 GNU/Linux
cer@Legolas:~> rpm -q kernel-default
kernel-default-5.3.18-lp152.84.1.x86_64
kernel-default-5.3.18-lp152.92.2.x86_64
cer@Legolas:~>

and now I can power off or hibernate this laptop nicely :-)

If you want logs or tests, just ask, otherwise the issue appears solved :-)

Thank you.