If you have a USB wifi card with the RTL8812BU / RTL8822BU chipset, here is how to install it in Zorin OS 16. Works perfectly.
sudo apt update
sudo apt install -y dkms git build-essential
mkdir -p ~/src
cd ~/src
git clone https://github.com/morrownr/88x2bu-20210702.git
cd ~/src/88x2bu-20210702
sudo ./install-driver.sh
Rebooting is strongly recommended when ask.