Thanks to developers, upgrades from .4 and previous 23.05-snapshot builds went smoothly here with no apparent regressions.
Buffalo WZR-HP-AG300H and Netgear WAX206 with some non-default VLAN config and services.
Re: the MT7622/MT8915E Netgear and firmware files: I built my images locally with imagebuilder which still includes the necessary firmware as default dependencies:
make image PROFILE=netgear_wax206 PACKAGES="wpad-mbedtls mtr luci-ssl tcpdump htop -wpad-basic-mbedtls luci-app-openvpn luci-app-sqm luci-app-tinyproxy openvpn tinyproxy sqm-scripts"