In Android app, v. 1.18.2, on Route10 settings, VPN menu, clicking on WireGuard server / Open leads to settings for IPSec.
Strangely, this seems to be working for me now, on the very same Android app version. I was pretty confident at the time of the post that the problem existed after testing with the same bad linking more than five times.
Don’t know whether it has something to do with that I set it up in the web app and then turned back to the Android app to see it working again. 