I mean, I've used Teams on a few Macs and never had that problem. I wouldn't assume that applies to every user. Also, millions of people seem to be using VS Code just fine.
I don't assume that it does, but the performance issues with Electron are widely acknowledged, as is the the fact that MS seems to have done a great job with VSC despite that.
Yeah. It sounds like we can at least agree that VS code shows that with enough effort a company can make a performant cross-platform app with a consistent UI and near-perfect feature parity. It's basically cross-platform nirvana.