Can't tell for sure, to be fair. But i know this one is official: @nancyromansci.bsky.social

Roman is expected to find 60,000-200,000 transiting planets, alongside mass measurements of cooler planets from microlensing.

If you plot only the discovery technique measurement, there's only place on the plot for each planet. Symbol shapes indicate if radius ratio (circle) or mass ratio (triangle) so there's no ambiguity. No need to convert in my view. I don't mind apples and pears both occupying the same fruit bowl.

And, to clarify, I'm plotting the discovery technique measurement. So one unique location per planet. Demographic studies are normally based on measurements of the discovery technique.

And these quantities are also closer to what is often directly measured. Eg transit lightcurves measure radius ratio, not radius. Microlensing measures mass ratio, not mass.

Sure, but the usual plots exclude one or more techniques by choosing either mass or radius as one of the axes. This plot doesn't choose, so can represent all. Also mass ratio, rather than mass, appears to be more fundamental. So, plotting both mass and radius by host ratio makes sense.