Despite the gutting of desktop usability for the sake of being mobile compatible, many environments still have zero presence on mobile. Can I PLEASE have my fucking scrollbar back now? I once spent a lot of my time and the time and the time of a developer trying to find a setting because there was no indication that a window had more content (a checkbox) to scroll down to. Something that would have been obvious befor…
On your scrolling complaint — well, there's this desktop-specific thing that OP doesn't mention but that becomes very apparent once you start looking for it in old-school desktop UIs. Controls never, ever scroll. Only content does. If controls don't fit into a window, you don't make it scrollable — you split it into tabs or you put the extra controls into a separate window that opens via a button. This appears to be universal at least for Windows and macOS.