you probably need to return the laptop. seems specific to your case. on thinkpad ubuntu works out of the box, like everything. I have a t490 currently but have had t460s n other models I have given to family members with no issues.
I doubt it, archlinux wiki is full of issues. More importantly, I made them all work by finding answers in stackoverflow specific to my drivers. Which means other people who need the same wifi driver experienced the same issue.
