This is a 2014 video showing an original Google Pixel chromebook with the first working version of coreboot frame support.
The system goes from
power-on,
EC startup,
coreboot setting up the platform and graphics
coreboot starting Linux
Linux starting X11 (chromeos still used x11 in 2014)
Linux starting chrome
Chrome showing a login prompt
The Pixel with coreboot graphics is on the right; video initialization by Linux is on the left. Moving the graphics startup from Linux to coreboot resulted in a far faster boot. On the Peppy chromebook I got this to 2.5 seconds.

Thanks to Furquan Shaikh and Simon Que, for making coreboot native graphics a reality; and Nico and the coreboot community for greatly improving it over the years.

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