Well, suspend got broken with last upgrade, analyzing the pm-suspend.log and comparing it with previous kernel (20t) after enabling debug it seems that it hangs after “echo -n mem”.
My system is fully encrypted, meaning I decrypt using GRUB’s LUKS (GRUB_ENABLE_CRYPTODISK=y) module instead of a unencrypted kernel.
Dell XPS 13 9360
BTRFS
GNOME
TLP
SWAP is LUKS encrypted on a separate partition
Both kernel are booted up using cryptdevice=dev:luksname root=mapperdev nosplash acpi_osi=Linux
It was the same for me but the mouse was flickering and same with the underscore at top left.
To fix I went to parrot recovery mode and where you type in the password I pressed ctrl, alt and f and typed me password in twice and done sudo apt dist-upgrade and it worked.