I had similar issues with my Orbi, this link tells what I did.
A few months ago I got my Starlink satellite connection and did away with the Orbi. I went with a TP Link network with two access points in my home and P2P to 3 buildings on my property (200+ feet from house) and now have absolutely no issues. I have 10 wifi based video cameras, several smart TV’s, 2 Apple TV’s, 4 Macs, 4 iPads , 2 iPhones, 1 Dell Laptop and the “Forge” all connected 24-7 and could not be happier.
BTW- the GF is still on a dedicated channel too.