16mp Quadcam driver install. Cant find grep imx519

[ganzx2]

Hello,
Apologies in advanced I am a rasperrypi newbie. I have ran a fresh install of bullseye 5.15.61-v7 on a raspberry pi 4b. I am following this guide line for line. - https://www.arducam.com/docs/cameras-for-raspberry-pi/raspberry-pi-libcamera-guide/how-to-use-arducam-16mp-camera-on-rapberry-pi/

wget -O install_pivariety_pkgs.sh https://github.com/ArduCAM/Arducam-Pivariety-V4L2-Driver/releases/download/install_script/install_pivariety_pkgs.sh
chmod +x install_pivariety_pkgs.sh
./install_pivariety_pkgs.sh -p imx519_kernel_driver_low_speed

these commands all go through fine. and I get "Your camera is ,and the relevant drivers have been installed."
however when going to the next few commands

dmesg | grep imx519
ls /dev/video0

Does not find imx519 and not the dev/video0 folder either. What am I doing wrong here? Is the kernel too up to date or am I missing something obvious?

[jandrese]

I had to reboot the Pi to get the driver to load. modprobe didn't cut it for some reason.