CSI Camera + Chromium browser on jetson nano

Are there any CSI cameras that are compatible with using on a chromium-browser directly? without V4L2 sink?

I don’t think so.

Can you share with us if there are plans to change this? Raspberry Pi does score better in this aspect.

I think the chromium should be follow v4l2 framework. If you really want you can try to have YUV sensor instead of bayer sensor. You can consult with partner like E-CON to check if they YUV sensor can support it or not.