Does anyone have a workaround for working with multiple schemas within a DB?

Unless something has happened that I'm not aware of, no there is not. https://github.com/prisma/prisma/issues/1122

Ah yeah, I'd seen that and was hoping something had happened lol. Seems like a huge blocker for the large majority of established products looking to switch to Prisma

Agreed, hopefully they'll have something sooner rather than later.