I used @RyanMillar Wyzecam mount for my MK3S+ for a long time. I upgraded to the MK4 and could not find a mount as good as his for the Wyzecam. So I borrowed his design and combined it with a mount to the Z axis. This provides a perfect view of the nozzle and build plate while printing and it follows the nozzle as the print progresses. Use a 20mm screw for the mount and that's it.
The author remixed this model.
Camera mounts to MK4 instead of MK3S+