Stay on Route?

I’m not sure I’m expressing my question clearly. Is there a way to ensure that I always stay on the same route, regardless of what happens? Or does it already do that, and I’m not aware of it?

Why am I asking?

I send routes to Garmin Connect, which is then displayed on my Garmin Edge 130 Plus. This device uses the breadcrumb method instead of actual maps. This works great, but it would be convenient if I could also use the Cycle.Travel app simultaneously to receive voice notifications.

I hope I’m making sense!

Thank you.

PS. This site and app are fantastic. They’re my go-to for finding the safest and most enjoyable routes.