This is an interesting read on the current state of scrollbars and how to control their behavior across operating systems and browsers. The post also highlights a bunch of stuff I didn’t know about, like Element.scrollIntoView() and the scroll-behavior CSS property.
My favorite part of all though? It has to be this bit:
In our opinion, Progressive Enhancement is the best approach to follow when implementing non-trivial scrolling in your web projects.
Make sure you can provide the best possible minimal, but universally supported UX, and then improve with modern browser features in mind.
Speaking of the cross-browser behavior of scrollbars, Louis Hoebregts also has a new post that notes how browsers do not include the scrollbar when dealing with vw units and he provides a nice way of handling it with CSS custom properties.