BarCode Scan option not showing

Client advised he has completed the installation of the app which contains scannable fields but he doesn’t see the scan option although I can see it on my phone (Samsung Galaxy S9)

Is there something we’re missing? Never had anyone not see the option in the past.

He’s on a Samsung Galaxy S8

it’s probably a long shot here, but any chance his S8 has “camera permissions denied”? e.g.

Got it. Thinking the same but he says he’s already checked that. I’ll send this his way. Thanks!