It has no h264 encoder or decoder or other encoders or decoders.

I know this from watching lots of people try to use it on 3d printers and discovering that their camera streams now take tons of CPU[1] after "upgrading" from a pi 4b to a cm5.

In any case, from just about any perspective, you are better off shoving a rockchip based cm5 compatible board in this.

[1] the commonly-used logitech cameras used to do h264 streams, but they removed the h264 encoder chips in all of their models a few years back, without changing any of the model numbers. All the current ones are like yuvy420 at 5fps or mjpeg at 30fps. Even for something like the mx brio. But for things like the c920,if they are old enough, they do h264, and if they are new, they don't.