Novalissoide you made a more secure example password, but still doesn't change the perception one might have observing you enter your duress "password/passphrase" (4945348) - which would still appear to someone watching you input it like a 1-2 word diceware password/passphrase.
Therefore I would think a sophisticated actor would suspect you are not entering your valid unlock password (because they know a 7 character password or 1-2 word passphrase is highly insecure) but are instead entering a duress pin/password.
Again, this scenario I'm referring to involves a sophisticated actor with knowledge of GrapheneOS and the duress feature.
Hope I explained this clearly :)