In the #OpenUI discord @Una (as a follow-up to my answer to @utilitybend) asked if we could use anchor positioning to connect the #PopoverAPI popovers and their anchors (via #CSS #AnchorPositioning) and while we can (https://codepen.io/kizu/pen/qBJQpjm, hacky but works), I stumbled upon a usage issue and a Chrome bug.

- I opened a CSSWG issue about using the implicit anchor elements on the nested elements somehow — https://github.com/w3c/csswg-drafts/issues/8913
- I opened a Chrome bug — https://bugs.chromium.org/p/chromium/issues/detail?id=1451095