Gastroparesis is literally the method of action of GLP1 agonists. It slows gastric motility. Gastroparesis is literally slowed motility of the stomach (where 20% of food stays in your stomach after 4 hours). It doesn't matter why, that is the literal diagnostic criteria, ergo it literally causes gastroparesis.
I assume you mean gastroparesis - this is an extremely rare side effect
> Bad depression
Again, pretty rare side effect.
If you think these are the minor things I'm confused as to what you think the major side effects are.