2 main breakers

On an inspection of a “flipped” house, found the service panel with a main breaker rated at 150 amps. In the distribution panel, there is a 200 amp main breaker. I realize the service is limited to 150 amps, but are there any other concerns?

Pictures would help.

The inside breaker is now just a redundant means of disconnect. The service panel provides the OCP.

Jim is correct as usual.