Has there been any discussion around non-CSS custom cursors (i.e. an element that follows the mouse coords) and top-layer? top-layer effectively breaks all existing solutions.

I’ve been able to abuse a manual popover to keep the cursor on top (https://codepen.io/knowler/pen/PoLNNKB), but that’s not perfect since there’s no reliable way of knowing when something new becomes the topmost top-layer.

I will admit that non-CSS custom cursors aren’t great, but it’s not uncommon. Seems like maybe a document author use-case for the overlay property or maybe something CSS needs to allow better customization around (specifically in regard to animation which is generally why people implement custom cursors this way).