Workflow for scheduling departure times with Waze?

I work from home but I’m also finishing up my last semester in college. I use Waze to tell me when to leave for a class.

Of course, I’ve integrated my Google Calendar and added addresses for my classes for it to pull in but it does not factor in 10-15m of walking time or to be in the room before the scheduled start time #Studious lol.

My question; Is there an easier method to have Waze factor in a specific buffer time or should I simply adjust my Calendar events by that same amount?

It would be great to not have this as a task but a simple “push” notification to leave.