dnf install kernel-devel kernel-headers dkms v4l-utils
git clone https://github.com/umlaeute/v4l2loopback.git
cd v4l2loopback
make
cp -R . /usr/src/v4l2loopback-1.1
dkms add -m v4l2loopback -v 1.1
dkms build -m v4l2loopback -v 1.1
dkms install -m v4l2loopback -v 1.1
reboot now
depmod -a
modprobe v4l2loopback card_label="Camera"
PT-BR: Como instalar e compilar o módulo de kernel v4l2loopback atualizado no Fedora Workstation 34