> Personally, I use an 11-year-old machine and have had to add userscript hacks to certain major Web sites to work around bugs in CSS grid (not the "lanes" described here).
The version of CSS Grid we're using today didn't ship until 2017; a browser from 11 years ago would be using one of the non-standard versions of Grid. For example, Internet Explorer 11 was the first browser to ship a grid implementation.
> At least new JavaScript features can be "polyfilled" or whatever. Maybe sites could check for CSS feature support too?
First, not every site needs to look exactly the same in every browser; that's why progressive enhancement is a thing.
Second, there are multiple ways to create masonry-style layouts that don't require masonry support in the browser using multi-column layout or flexbox.
Third, masonry can be polyfilled using JavaScript [1].
The version of CSS Grid we're using today didn't ship until 2017; a browser from 11 years ago would be using one of the non-standard versions of Grid. For example, Internet Explorer 11 was the first browser to ship a grid implementation.
> At least new JavaScript features can be "polyfilled" or whatever. Maybe sites could check for CSS feature support too?
First, not every site needs to look exactly the same in every browser; that's why progressive enhancement is a thing.
Second, there are multiple ways to create masonry-style layouts that don't require masonry support in the browser using multi-column layout or flexbox.
Third, masonry can be polyfilled using JavaScript [1].
[1]: https://masonry.desandro.com/