Steps to reproduce:
Result: the "Create a site menu" step is before the "Confirm your email address" step in the Site Setup List, but you cannot create a site menu before you confirm your email address. If you try to edit Menus in the Customizer before confirming your email address, the following error appears: "You won't be able to edit your menu until you confirm your email address." (15s)

Tested with WPDesktop 5.1.0-beta1 on macOS 10.14.6.
I moved this to the Calypso repo since it also occurs in Calypso web (not just the desktop app).
cc @mmtr as I see you added this step in https://github.com/Automattic/wp-calypso/pull/40844
Thanks for the heads up. Potential fix available for review at D42327-code.
Fixed in D42327-code and deployed 馃憤