Chromium has so many LOC's of code and so much large in their size that it bypasses github limits.
What I mean by this is that github has a limit (in my understanding) on the sizes of public repos.
Chromium bypasses that & this is the reason why if you fork Chromium, you can get unlimited storage in github iirc
Github gets to start really wonky when you do this tho (iirc)
I can be wrong, I usually am but wanted to share this fact to just share the absurd scale of how large chromium is.