Asus Lyra Trio (Map-ac1750)

Hi,
I'm new here and starting with openWrt.
I'm searching for a firmware for Asus Lyra Trio Access-Points. Since I've several of them in use with Merlin-WRT and their support is soon ending, I'd like to use them with my Zyxel Armor G5 Router running openwrt (still in setup phase).
Can anybody direct me to a useable version?
my expirience is quite some in embedded Linux, Yocto and general embedded development but not much of network devices yet.
Thanks, florian

Not supported.

QCA based, so probably supportable though.

https://fccid.io/MSQ-RTACRW00

You can always wire incompatible devices and bridge their wifi.
Outline here - set static ip in lan side , disable dhcp and configure wifi with identical parameters.
https://openwrt.org/docs/guide-user/network/wifi/wifiextenders/bridgedap