This is one of the best videos I’ve seen about Responsive Design in PowerApps. Here, any common inserts (gallery, form, button, text) step-by-step are shown, how this responsive can be created. Thus, it no longer matters whether your horizontal or vertical design is chosen.
You can see this video here on my blog because I have rated this video with 5 stars in my Youtube video library. This video was automatically posted using PowerAutomate.