Yes, there's an on-going discussion about going to native clients. One path is React Native going desktop, similar to how we've done our iOS and Android apps. We should probably do something about encouraging some early prototyping.
There’s a lot of speed you can muster out of the different platforms the closer you are to the metal. That said, I would love to help out if it’s an open source project. There are some developments at least on the iOS side, like SwiftUI, that could make writing and maintaining these native apps easier than you may be thinking.
imo a fast native client, that doesn't look like a sad slack clone (which teams currently does) would put you streets ahead of the entire field.
I know it means increasing code complexity.
but by golly would it be nice to have a truly nice client.