Sometimes I start edge when something does not work in firefox. Everyone knows you want your browser to be quick, snappy and use few resources.
What does Edge do? It shows you a unskippable, un-closable "how-to" (as if I've never used a browser), and a make-an-account-and-sync nag. It takes a minute to click though, what a turn off!
It hasn't popped up for me in a while, but it definitively happens sometimes.