After 16.4 my HomePod will always become connected home hub and not the cabled apple tv4k :-(

We are leading parallel lives: I have a Ubiquiti home network and the upgrade to 16.4/new architecture screwed up my home. I have:

• About 100 smart devices.
• Countless automations and scenes.

I ended up blowing away my home because my spouse got kicked out of the home and I couldn't get them back in.

Hours and hours and hours (spread among several days) later, I'm almost back to where I was, EXCEPT:

Two of my three HomePod Minis claim they are "not responding" even though they are.

I've checked all the things in the Apple Support article and in the /r/HomeKit subreddit. I'm a frickin' IT professional! I support a commercial Ubiquit set up, so I'm not some idiot who doesn't know how to tune a network or how to do troubleshooting.

Guess I will reset the two offending Minis AGAIN, including removing them from my iCloud account. It's a pain in the butt, because I have several radio/music-related automations involving the three HomePod Minis.

Please send feedback to Apple at Product Feedback - Apple!

Sorta the same issue in that I really want to control which device is my HomeKit hub or which devices should not be promoted to hub.

I have 5 Apple TV boxes, 2 pair of HomePod minis, and 6 pair of HomePods on my network.

My specific problem is that our iPhones, iPads, iMacs & macknook HomeKit report 2 to 5 different hubs they are connecting to. This results in some devices (iDevice switch’s, iDevice outlets, LifX bulbs, Hue bulbs, etc{roughly 200 total devices}) being available on one device but maybe not on another.

Thanks

I have smart switches on every AppleTV and HomePod.

On the Ethernet-connected AppleTV that I want to always be the hub, the smart switch is always on. (I can toggle it off/on for troubleshooting but it stays on most of the time.)

i have scenes for the two rooms with wifi-connected AppleTVs that use smart switches that turn on the ATV when watching TV and, when done watching TV, to turn those ATVs off.

Finally, at 4 AM while we are all asleep, every smart switch for the HomePod Minis is turned off, then turned back on 30 minutes later. Since the 2ATVs that use wifi are already powered down from the scenes, this forces my Ethernet-connected ATV to be the hub.

It seems to work all the time.