Even if it would be running natively, the statement'd be still highly debatable.
But it's Electron based and using TypeScript, which means it uses a lot more electricity than a native solution would (about 20 times [1]), wasting precious resources.
Now consider the fact that this is a product of a company that states "to ensure that technology is inclusive, trusted, and increases sustainability."
The only amazing thing here is the level of hypocrisy, IMHO.