wifi adapter not recognized

If you have a rtl88x2bu not recognized by Linux, you can try this:

git clone https://github.com/cilynx/rtl88x2bu.git

and then

sudo dkms add ./rtl88x2bu

and

sudo dkms install rtl88x2bu/5.8.7.1

You should change the release number (5.8.7.1), if necessary, according to your own release.