The message is there, but
outside the screen when you need it most.
Version 1.0 in wide screen looks like this:
View attachment 4284721
It would be better if the message was in the top left corner.
Version 0.0.1 used to handle widescreen just fine:
View attachment 4284724
I searched the web for some command line parameters to force the game resolution from my side (like unity games do).
I found nothing for GDevelop, but I stumbled on this:
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Maybe you found it already, maybe it is outdated, or maybe it could help you find a fix.
Oh, I see! That's why you made the characters boobs so big. It's for ... hum ...
quality control !