It looks to me like several of the prongs are wonked. It's not likely to pop out super easy but one more good bonk and the diamond will fall out.
New setting, and I would take it to a different jeweler.
Do you think it’s the setting? Too high? The jeweler?
What kind of setting would you recommend?
Way out.
All prongs should be evenly distanced.
There should be no “air gap” where the diamond seats into the prong ie the notch is cut correctly to hold the girdle edge.
The prong heads should be finished and no ”air gap” between the diamond surface and the prong.
With normal wear you should not be able to bend the prongs out of alignment however if there is an air gap between the diamond and prong a thread or hair can catch under and then you might bend a prong out of alignment.
i would start again, with another jeweller.