I think Figma being a browser web app is one of the core reasons why it’s outpacing alternatives both in terms of features and UX. It’s a remarkable feat.
Yes. I found it weird too. They put so much effort into making their app performant and then for the desktop app, wrapped it into an electron shell which is weird :)
I guess except the designing canvas, all the UI controls are built over DOM/Javascript and they needed a quick way to take them all into desktop. But I did expect more from Figma :)