Important to note that my contribution there has merely been the installer and providing some support for users.
The real work was done by @blogic (MediaTek MT7622 SoC support), @nbd (mt76 wifi driver) and many other active OpenWrt geniuses -- I just got offended by the shitty bootloader and waste of storage and lifetime, so I had to fix that...
I'm on vacation (well, not really, actually volunteering on a SAR vessel so I got only email to reply because my workstation with credentials for work-stuff stayed at home.
And guess what: even here OpenWrt is doing the main firewall, mwan3 doing load-balancing and fail-over for 4 wireguard-tunneled uplinks (2x VSAT, 1x 3G/4G/5G, 1x directional wifi client to nearby apartment while we are in the shipyard), ...
I was gifted a Netgear RAXE500 and got a tracking number through my email. I've already started the return process but it being a family member who will see that I returned it I am wanting to make sure that it will never make it to openwrt.
Wait two more weeks until the short-term confidentiality is over and we should be able to look at the internal FCC photos and tell exactly what components it has and what the chances are for it to ever support OpenWrt or not...
Someone mentioned the WAX214 & WAX218 (IPQ6018, don't know the wifi). Well, netgear has something on their download site for them. It's openwrt based, there's no sources, and it appears to run Linux 4.4 and use gcc 5.2, holy shit this is a prehistoric thunder-turd. From WAX218_V2.0.1.0_source.tar.gz, we get files like: build_dir/target-arm-openwrt-linux-muslgnueabi_gcc-5.2.0/root-ipq/lib/modules/4.4.60/
Same general story with WAX610, WAX620, WAX630. This time the source download is actually sources at least, but again almost everything in this archive is >5 years old too.
I was rather hoping. I almost went out & bought a WAX214, given that they're cheap & 802.11ax, and qualcomm, but wow, not gonna hold my breath any longer having seen that.
Well, from a hardware point of view the AX3600 is clearly much more capable. However, from a software point of view it is the other way around. The E8450 is already merged into the master branch and available in snapshots so one does not need to do his own builds. OpenWrt for the AX3600 on the other hand is still in heavy development. Another thing is the initial installation. While trivially easy for the E8450, the AX3600 pretty much requires serial access (BTW: 1.8 volts only!) and is quite a little bit more involved. So unless you are familiar with low-level OpenWrt stuff I would not recommend the AX3600 for now.