Upgrade from experimental 1.5 to stable 2.0?

I am still on Homey 1.5 - During the 1.x period I’ve joined the experimental updates in order to bug hunt and help developers.
Now (finally) I’ve decided to upgrade to 2.x but I want my Homey to stay in the stable firmware branch (and not the Experimental if there is one). Is this possible without completely resetting my added devices and flows?

I have searched the forum but cannot find a definite answer.

You’ll always stay in experimental once you activate it, this will not change with any update of homey, this includes the transition to homey v2.

So indeed, a full reset is needed if you really want it disabled, or disable the automatic updates.