This is a great video! I wish it existed a few years ago when I struggled to find good information about the MIPI DSI, CSI-2 and D-PHY interfaces. That led me to write my own app-note - partly to teach myself but also to then teach others. You can find it here:

https://www.nxp.com/docs/en/application-note/AN13573.pdf

I used the same RT1170 EVK as shown in the video for my examples in the app-note.

Certainly doesn't help that the standard is closed source and only available to industry members.