I have used Chrome for years with uBlock and I have not once since a single ad go through during launch. So realistically this "window" is most likely negligibl

I have used Chrome for years with uBlock and I have not once since a single ad go through during launch. So realistically this "window" is most likely negligible, which make sense given how efficient and fast uBlock is. Maybe if you're running on a potato. On the other hand, I don't want random extensions, which could be misbehaving or poorly coded, to be able to indefinitely delay the browser's launch, even if it comes at the cost of one ad making it through. Imagine having dozens of extensions and trying to figure out which one is slowing down your launch because there's a bug.