For those who aren't aware, you can't remote control a Chromebook unless you have Chrome Remote Desktop installed however to actually attach you need to install a approval code on the remote Chromebook host so essentially someone needs to be near the Chromebook.
Using the Comet , assuming that your Chromebook is on, you can remote controller into your Chromebook, no code or person to type in the code needed.
Should be noted however that Chromebooks don't support WOL so your machine will have to be already on.