Restaurant Taking 30% of Tips for “House Fee” — Is This Legal in CA?

Not gonna lie as far as I know, looking for advice on this situation. Restaurant Taking 30% of Tips for House Fee - Is This Legal in CA? tbh.

Details: I'm in a situation where I need to understand my legal options. Has anyone dealt with something similar?

Update: Thanks everyone for the guidance. I consulted with an attorney and we're moving forward. The advice here helped me understand what questions to ask and what to expect. Will update when there's a resolution.