Off Topic:
I experienced some hickups (different kind) with kernel 5.19.3 today (not nvidia-related, as a majority of posters today reported), but VirtualBox guest-additions don’t work any longer, at all (all related services had to be disabled for the system to boot without any errors).
Screen sizing and shared folders still work, out-of-the-box with the latest kernel
I maybe test this with LTS kernel but now I am just happy that my system runs 
I don’t usually even care about how my grub looks.
I though that I had bad RAM or that my disk was going to die until I realized that it was all just because of silly grub theme 
Don’t give up! 
Don’t know if it’s the same thing, but I noticed on the Arch forums that someone is also having a similar problem with grub and theming: https://bbs.archlinux.org/viewtopic.php?id=279115