Para Kernel stable execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:Sauerland/Kernel_stable/home:Sauerland.repo
zypper refresh
zypper install rtl8822bu
Para Kernel HEAD execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:Sauerland/Kernel_HEAD/home:Sauerland.repo
zypper refresh
zypper install rtl8822bu
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:Sauerland/15.6/home:Sauerland.repo
zypper refresh
zypper install rtl8822bu