Hello @Beltran0,
Pre-approvals don't show on your calendar.
The article below says "Your listing’s calendar is still marked as available when you pre-approve a guest."
As it's possible to pre-approve several potential guests for the same dates I suppose it would be difficult to list all pre-approvals in the little square for each date. I suppose they could mark dates with a different "Pre-approved" colour but we wouldn't know which dates were pre-approved for which people and would still have to go and consult our message history.
How do I pre-approve a guest?
Steve.