I've downloaded Laragon in full, switched to Nginx from Preferences -> Services & Ports -> Unchecked Apache and Checked Nginx. Then I installed a new project via Menu -> Quick App -> WordPress. I have enabled SSL...
Wait a minute. AH I see now, you have to use the SSL port 8443 so:
I think I'll leave this here in case it helps someone else, I was stumped for a few minutes.
Cheers, this app looks great!