"... I am trying to get use to this new app...."
I deleted the app and use the Edge browser on my phone. Works perfectly. Edge allows adding a direct shortcut to the home screen.
I had to pay $30 US for an I-94 when I was crossing the CBX for a five day Thanksgiving visit to family, contrary to what everybody says so expect to be surprised.
https://waggonerguide.com/canadians-face-stricter-u-s-border-crossings/