Since this issue has to with visibility, then in addition to my above post on changing W.11 to always show scrollbars, I would like to share some ways that I have found enhances visibility. First is the Custom Scrollbar FF extension. Search, install...
In Windows 11, 22H2, the Windows 11 accessibility setting "Always show scrollbars" is found under Settings (press Windows key and i key together) > Accessibility > Visual effects (on the right side).To do so using the with Registry (be careful), ...