Are there any studies to measure frustration when tapping back multiple times to get out of a hierarchy?
I ask because I am evaluating the most appropriate way to navigate a complex menu application. One with a mix of deep categories and can have deep transaction/reservation steps.
I've looked at sites like Best Buy and IMDB that implement the hamburger and back button on the left side of the titlebar and sites like Target that place a back/breadcrumb inside sidebar navigation. Both have their advantages and disadvantages.
I've also looked into integrating dynamically altering the hamburger