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The War is Glorious/Hell disparity is Recruiters Always Lie.
The Simple Life is Simple is about another occupation (farming) that can be glamorized in media. I think it's more about the difficulty and complexity rather than awfulness though. I'm sure some people find farming to be fulfilling.
Modeling is Glamorous is another one that's self descriptive, although again, real modeling is probably not awful.
Really, any job we see in fiction will be The Theme Park Version, since a) Most Writers Are Writers and they can't (even if they want to) research everything, b) audience cares about the story (hence Artistic License), so, unless the story is specifically about how horrible some line of work is, the sordid details/Wangst would detract from it. We do have Rom Com Job (where the Love Interest or protagonist has an Inherently Attractive Profession and a One-Hour Work Week).
Is there a trope for when a work depicts an occupation as glamorous and easy that in the real world is known to be dangerous (whether due to violence, frequent accidents, or exposure to toxins or diseases), physically intensive, poor-paying, or otherwise all-around terrible? I've seen tropes for specific jobs (Unproblematic Prostitution, for example), but nothing for this in general. Tropes for in-universe depictions work as well (like if in-universe propaganda promotes War Is Glorious when the setting is very much War Is Hell).