My volume up and down, my brightness buttons, and some of my other buttons aren't working either,

so I have a HP pavilion gaming laptop runnign windows 11, and I was playing some games when I realized my volume up and down, my brightness buttons and some others I might not know of aren't working. I also noticed in some games that there are key bindings to volume up and down (Beam,NG drive has volume up or down as reset for some reason) but I noticed that if I plug in a keyboard that I got with my old pc (it has a volume up and down button on it not brightness) that it works perfectly for volume up and down. Well, my main question is, is there a way to make my volume, and brightness buttons work? I think its windows 11 (that came pre installed on the computer). Is there a way to use my laptops built in keyboard for the volume, or will I have to use another keyboard or do it manually? I personally think its the software or my laptops defective. does anybody have any thoughts on how to fix it/ what the problem is?