Instead of the the question being stacked on top of each other.
Are you looking for a way to pan the survey horizontally across the screen? I'm wondering if you have explored the use of Pages?
If this doesn't do it, please take a look at the following GeoNet thread which discusses the grid-theme. Please vote for the idea if this is what you are looking for, and if not, further explain your desired functionality and use case.
Survey123 Grid Theme and Multiple Page Forms
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