Hover effect for Lines, Bars etc. and coordinating hover with GlyphSeries

[lapidus]

Hi and thanks for a great lib!

What's the best way generally of applying Hover effects similar to these examples from Echarts?
https://echarts.apache.org/examples/en/editor.html?c=dataset-link

Possibly Related Finding 1
In the RFC for the XYChart, OverlayBandBar was mentioned, is this something that is on the roadmap?

There are also some primitives we have such as OverlayBandBar that is used to 'highlight' on hover that will be much easier and composable when the scales are available via context
#734 (comment)

Possibly Related Finding 2
What's the reasoning behind Glyphs being their own Series versus a property (glyph={type: GlyphCircle, etc.}) on for example the LineSeries? Related to the above, seems a tad more difficult to coordinate hover effect across Glyphs and Paths if they're not colocated?