HomeKit "Not Responding" on cold start, essentially

I see this, but it’s a really old issue - HomeKit Not Responding

What’s happening is Home will response my devices aren’t responding. BUT, just opening “Home” gets them back working again.

It seems there’s some kind of “rest” or “sleep” state HA or HomeKit goes into when there’s not activity.

Is there some way to keep HomeKit alive? Some kind of network ping or polling that can stop HomeKit and HA from losing their connection?

Happens when: I reboot, leave wifi and return.