To anyone interested, instructions from here: https://unix.stackexchange.com/a/394032/5612 <https://unix.stackexchange.com/a/394032/5612> seem to enable rtl8822be on buster.
Excerpt: git clone https://github.com/lwfinger/rtlwifi_new.git <https://github.com/lwfinger/rtlwifi_new.git>git checkout origin/extended -b extendedcd rtlwifi_newmake install modprobe -r rtl8822bemodprobe -v rtl8822be Side effect is that bluetooth doesn't seem to be working, but for me wifi is more important than bluetooth so I can live with that. After installing firmware-realtek I didn't have rtl8822be module installed on my laptop, which I guess might be the culprit. Jacek
