I think the only native apps that I use are Steam, Unity, Photoshop, SourceTree and VSCode. Out of those the only "fast" one is VSCode, which is actually written in JS. Even though you mentioned the browsers being "bloated", for me Chrome always starts up instantly and I have no responsivness issues when browsing sites, playing browser games or using browser apps.
Out of those the only "fast" one is VSCode, which is actually written in JS
Typescript I think? Anyway, much as Microsoft has done an amazing job with VS Code, it really doesn't have quite the snappy feel in all circumstances of a native app. Extension loading on start up is one example. If you use a keyboard mapping extension it's quite possible to start typing on launch and find the mapping hasn't kicked in yet.
That's not to say it isn't worth the tradeoff. The costs are inconsequential, and the benefits great. I'm mostly an IntelliJ Idea user, but the sheer speed with which VS Code is developed often tempts me towards it (eg. it's well ahead of Idea on wsl integration)
