Thank you, I got it to work with my ax3s after a bit of fiddling around
The ax3s do not like getting plugged into existing networks at all! What I did was plug in to them directly with an Ethernet cable/laptop to program them. From there I used this script to set up the ax3 as a bridge as the quickset was not being nice at all:
viewtopic.php?t=182246
After that you enable the two wifi interfaces and put in the SSID/security config for each of them. My other devices do not have WPA3 so I only turned on WPA2 on the ax3s. I'm not sure if that's correct but it all works. I have all 4 APs running together without them fighting to take down the wired network like they were originally. Everything is transparent, all of the devices can see each other regardless of AP.
I also confirmed that the RBGPOE is capable of 2.5 gig which is nice. My IP router is a Sagemcom 4000 (Bell Home Hub variant) with 2 gig Internet and links to my wired 10 gig CRS312-4C+8XG. It has been a bit of a chore to distribute the 2 gig Internet wirelessly without using the Sagemcom.