Dashboards in constellation do not auto-refresh (as of Infinity '25). The majority of Pega, even in Traditional UI has never natively supported auto-refresh.
You can use the messaging service to notify of outdated list views:
I know for Constellation feedback has been raised for this as its does come up occasionally (FDBK-125495 Auto refresh of list view without notification)
@SvenKrow I’d love to claim that in the 7 hours since you posted that I managed to get this into the Infinity '26 release, but I just don’t have the kind of super power!
I can however see dashboards should be getting an uplift to configure auto-refresh timing in Infinity '26