Have you played with the newer dynamic vs fixed grid types? All my forms are old style of just grid pages and they can get funky now with the new style.
See https://community.esri.com/t5/arcgis-survey123-blog/survey123-tricks-of-the-trade-groups-grids-and/b...
and https://doc.arcgis.com/en/survey123/desktop/create-surveys/xlsformsappearance.htm
By setting the style column on the settings sheet to fixed-grid or dynamic-grid, groups in your survey can be set to display the contained questions in a grid.
The fixed grid style creates a placeholder for each question, including those with a hidden appearance. A question will appear if its relevant conditions are met; otherwise, a blank space will occupy that place in the form.
The dynamic grid style allows questions and groups to move on the form, depending on relevant conditions to make best use of the space on the device screen.
The grid layout style on the settings worksheet is a global setting that applies to the whole survey. You can also apply a grid layout style for individual groups or repeats, allowing different styles to be used for different parts of your survey. The global setting can be overridden by entering either of the following in the body::esri:style column of the group or repeat question:
layout=dynamic-grid
layout=fixed-grid
