Windows NT on 600MHz machine opens apps instantly. What happened?

Windows is especially bad at this due to so much legacy reliance, which is also kind of why people still bother with Windows. Not to claim that Linux or MacOS don't have similar problems (ahem, Catalyst) but it's not as overt.

A lot of the blame gets placed on easy to see things like an Electron app, but really the problem is so substantial that even native apps perform slower, use more resources, and aren't doing a whole lot more than they used to. Windows Terminal is a great example of this.

Combine this with the fact that most teams aren't given the space to actually maintain (because maintaining doesn't result in direct profits), and you've got a winning combination!

I think this blame is fair. Electron is the most obvious example, but in general desktop software that essentially embeds a full browser instance because it makes development slightly easier is the culprit in almost every case I've experienced.

I use a Windows 10 laptop for work.[1] The app that has the most lag and worst performance impact for as long as I've used the laptop is Microsoft Teams. Historically, chat/conferencing apps would be pretty lightweight, but Teams is an Electron app, so it spawns eight processes, over 200 threads, and consumes about 1GB of memory while idle.

Slack is a similar situation. Six processes, over 100 threads, ~750MB RAM while idle. For a chat app!

Microsoft recently added embedded Edge browser controls into the entire Office 365 suite (basically embraced-and-extended Electron), and sure enough, Office is now super laggy too. For example, accepting changes in a Word doc with change tracking enabled now takes anywhere from 5-20 seconds per change, where it was almost instantaneous before. Eight msedgewebview2.exe processes, ~150 threads, but at least it's only consuming about 250MB of RAM.

Meanwhile, I can run native code, .NET, Java, etc. with reasonable performance as long as the Electron apps aren't also running. I can run multiple Linux VMs simultaneously on this laptop with good response times, or I can run 1-2 Electron apps. It's pretty silly.

[1] Core i5, 16GB RAM, SSD storage. Not top of the line, but typical issue for a business environment.

It's not an easy task, and it's not something that anyone has really done. There are plenty of single platform examples, and Flutter is about as close as you can get in terms of cross platform.

There are also alternatives that can use the engine of an installed OS browser. Tauri is a decent example for Rust. Also, Electron isn't to blame for the issues with Teams. VS Code pretty much proves you can create a relatively responsive application in a browser interface.