How often should I exfoliate oily skin?

I have oily skin.

As I get older, it feels like my skin is turning into combination.

Maybe that's why I have a lot of dead skin cells, and my skin looks rough, dull, and unhealthy.

I exfoliate about twice a week.

I have oily skin with a lot of dead skin cells.

I'm curious how often you exfoliate.

And it doesn't matter if it isn't the exfoliating foam cleanser from the product I posted.

I'm wondering if using only an exfoliating foam cleanser is enough for effective exfoliation.