Did a clean install and fully updated. Buster on a headless Pi4 and set up my wifi AP with this https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md#internet-sharing
Installed the Alpha1 and tried various config files and all seem to work and connect seamlessly, good speeds.
Nothing works on the AP though through the VPN, I can connect and ping wlan0 and tun0 from windows but no internet. This is probably blatantly obvious to most but I'm sadly out of my depth here so I'll leave this thread to the pros.
--recover-network gives the same fault as I mentioned earlier, no backup of resolv.conf, though when killing the connection with ctrl/c the last thing it says is "successfully restored DNS"
Ctrl/C kills everything, kills the ssh shell and I can't ssh back in to either eth0 or wlan0 #poweroff
Good luck with the project, I will keep my eye on it :-)