Eero 6 connectivity dropping… again…

Hi. This is the second time in 3 months that our eero 6 system has decided to intermittently drop devices. For added detail, we are a mostly Apple house. We have eero 6 + 1 extender opposite corners of our home. 2200 sq ft. This began with a MacBook dropping every couple minutes and then reconnecting for a minute or two before dropping. Then it occurred on an iMac, an iPhone, an Apple TV, and… an HP laptop. We troubleshot with the eero team for 5 hours the first time… they escalated to a team that just closed the case out. So, I reset the whole system. Made all my devices forget the network and started 1 device at a time adding them back. Took hours… we have 20+ devices connected. Now… it is happening again. Has anyone else seen this? This always seems to happen close after an eero firmware update. I’m getting to the point I want to move to a Lynksis Velop Micro 7. Any suggestions here would be greatly appreciated.