Hp-15-fd2002ns - Qubes 4.3 rc4 - grub & suspend issues

hello

in relation to this: laptop hp-15-fd2002ns

HP 15-fd2002ns - worked with 4.3 rc4 but not so well with 4.2

the following issues have surfaced, with some real-life use.

there is problems with suspend / resume, and yes, the usual steps were followed;

What info do i need to provide to obtain some assistance, please ?

The curios thingy is that i edited the /etc/default/grub.cnf and added:
mem_sleep_default=deep

however, there is no output on command:
grub2-mkconfig

Any suggestion on how to resolve that ?

Please let me know any details required. Thanks