> Hiding the elements/div would prevent the user from clicking that button.

If you're going to start adding logic to hide other elements conditionaly it's prone to become spaguetti. And how would that scale code-wise?

Might as well dim the screen and show a loading spinner to convey to the user that they should wait, a fraction of a second on average.

Remember this is in the context of a LOB app. Not facbook.

Just show a loading spinner from an axios callback and be done with it. It's so fast anyway.