In other css news: this property works everywhere except safari and is my new favorite thing
https://developer.mozilla.org/en-US/docs/Web/CSS/scrollbar-gutter
scrollbar-gutter - CSS | MDN
The scrollbar-gutter CSS property allows authors to reserve space for the scrollbar, preventing unwanted layout changes as the content grows while also avoiding unnecessary visuals when scrolling isn't needed.
BillTheCat