Alternatively, someone has a sleep disorder and an ADA accom for a 2h lunch so they can take a nap.

Sleep cycles are 90 min give or take.

Clocking out the moment the food arrives, eating, and having 90+ min to nap so they can face the rest of their day is high value, and high yield.

That makes it practical for a person to work a traditional 8 hour day where otherwise they’d be unable to.

That person - generally - does not have the energy to put lunches together in advance after work, etc.

They wake up, stumble to work, nap midday, and stumble back to bed after.

What you’re calling out as a problem is what enables that person to function and work.

Not to argue w/ person who cited DSM below. Can be dangerous. But can also be life saving or enable a normal life and career vs the alternatives.