Obviously you know nothing about Chromebooks. They are NOT powerful enough to record, let alone stream. They have the internals of mid-to-late 2000s laptops. If you reall want it, install linux on chromebook (its not that hard) then install (vanilla) OBS and see how slow vanilla obs is, and picture a more featured program (slobs) running in the same environment.
You won't be notified about changes to this idea.