WDW AP Perks at Disneyland?

Do WDW AP holders get any discounts or perks at Disneyland (California)?

Only if you hold the Premier Pass that gets you admission to Disneyland as well.

WDW-only passes, including the Platinum level do not.

The one exception I have sometimes noted in the past is early registration for west coast runDisney races, but, those are on hiatus until at least 2021.