TomTom, I have not dug into how Xara now delivers its WOFF files but the naming is irrelevant as it is just a label (the src url link to the woff is what matters). It further offers a local cascade of font names to assist the browser to pick the right one. Some of the names I have have a prefix like xr3_ or xr5_, which is saying use Nunito and programmatically render Bold or Bold-Italic, if no font weight or style is available. Where I have used Nunito ExtraBold, the local label includes NunitoExtraBold. All seems rugged.
What I am more certain about is Font Grouping.
In the past Xara created a Bitmap from grouped text. It still does with rotated text. Both are horrible for Accessibility.
You can still get this with grouped text but you need to pick Web Properties > Image > Group web export: Export group as a single image.
In X Pro+v21 and coming (soon) to XDPX/XWD(P), if you Convert to Editable Shapes, the glyphs are rendered as SVG so are scalable, without jaggies.
Acorn
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