What, according to you, differentiates a cafe as a place to only chill from a cafe to only work at?

Or would you say that the line is blurry?

I am mainly trying to understand how Blue Tokai or Third Wave can be considered as a second workplace whereas Brik Oven might be considered as a place to chill.

Overlaps always exist, and there are definitely people who chill at Blue Tokai. Tell me your opinion as well as any technicalities you might want to dive deep into.