[usrusr]

> How is this better than Flutter?

The lower bound of an answer is this: when the core of your work is kotlin android dev and you are only occasionally required to dabble in desktop (perhaps for some internal tooling related to the backend of your app) skill transferability will be worth a lot. Everybody can throw together hello world and some buttons in any toolkit, but reaching any meaningful level of productivity requires a lot of experience in the toolkit.

Something designed from the beginning for multiplatform will very likely end up not productive overall of you have a 50:50 distribution, but if you have a clear first class platform for product / second class platform for the occasional supporting tool situation, then something designed specifically for the first class platform that also has some capability for the second class platform can easily be superior.