I don't remember hearing about them, but I see HN has discussed it before: https://news.ycombinator.com/item?id=33530356
Perhaps you could do a Tell HN post? I'm also wondering what's happening with Adobe acquiring Figma. There's https://penpot.app/ I took a look and saw that this is still there :) https://www.figma.com/figma-vs-adobe-xd/