Windows 11 has these awful scroll bars - at least on dark mode, that are a hair thin and the bar color is the same almost as the background scroll area and I for the life of me, at under 40 years old, cannot ever figure out /where/ the damn button portion is. Windows 11 also likes to auto-hide scroll bars, and minimize them otherwise which is super weird to me since its supposedly a touch friendly OS (Designed for Surface and Phones as Windows 10X supposedly)
Mobile devices have no visible scrollbar unless you are actively scrolling. This is the look they were going for when they say “touch first”. Users are not expected to use the scroll wheel to jump, or click, or do any maneuver more precise than selecting a block of text.
