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I think you can also map properties through BCD (github.com/mdn/browser-...) to web-features (github.com/web-platform...), in order to get some sort of grouping (e.g. “Anchor Positioning” to cover all anchoring-related properties) which you could then rank by popularity.
All three are great for a combined mapping (including sub-features). I made a little prototype tool to test features against browser targets css.franklyone.com/support/
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