I tried Ubuntu LTS 22.0.4 via the live USB.
It had very narrow scrollbars. Scrollbar issues also kept from updating Ubuntu several years ago. I have coordination issues, so I can't use the narrow scrollbars, and tendon issues, so I can't use wheels, balls, or swipe gestures without hand pain. I had *years* of hand pain after a few *months* using wheels.
Accessibility did not show options to customize scrollbars. Appearance did not. Searching the help guide for "Scrollbars" did not show anything.