what about simple solution to the problem:
https://www.asus.com/support/FAQ/1044458/
Seems like Asus issue, not Slackware but easily fixable.
I have 11th Gen Intel i7-1185G7 with NVMe only and VMD disabled (custom kernel 5.13.10) and all works. Your other laptop: ASUS M570DD has this feature (VMD) probably disabled.