I am not a purist on the blob situation, there is no time to chase each one... GL.Inet folks seem to be good people, the product works.
BTW, even though there are mentions that OpenVPN is accelerated on this router, WireGuard is still times faster. I had to switch from ExpressVPN to Proton as ExpressVPN doesn't support WG profiles.
It's not Broadcom so it is supportable by OpenWrt. It runs Qualcomm IPQ5332 SoC which recently got supported in upstream linux ath12k drivers... There are a few patches to make it work and the only blocking issue is with the Realtek switch connected to the LAN ports.