No, this is not possible. Even Workspace do not offer communication limits per workspace.
You can override communication limits at smart campaign level, though.
Yes, I'd build a set of smart lists and feed these into lists. It's a bit complex.
- Was Sent Email in Past X Days at least 1x
- then exclude that list
- can setup batches to push in and out such leads.
It's not super amazing, but it can work.