It will work for documents and the most simple TODO apps. It actually will not work for anything useful. There are a number of security policies in place explicitly to prevent things in file:// from accessing features available over real HTTPS. You will not have access to anything that requires a network connection, local storage, location services, WebRTC, etc. This is why things like Electron exist and why experiments like Active Desktop, HTA, the thing linked to in this article, that other project that had the same name as this one, and Adobe AIR were tried.
I don't know about Windows, but on macOS you can. If you wanted to try yourself you could use SingleFile to export a webpage as a .html zip file which you could then just 'open' into the web browser.
For a web app, you might have to unzip it and launch the .html inside. CyberChef for example does offer a downloadable copy of its web app instructing you do just that.
I did it this week. MacOS, but it would have worked on Windows or Linux. Double click any HTML file in any of those and it will open in a browser
Will it work for every bloated react app? no.
Will it work if you intentionally put the slightest amount of thought into the design? yes.
It will work for documents and the most simple TODO apps. It actually will not work for anything useful. There are a number of security policies in place explicitly to prevent things in file:// from accessing features available over real HTTPS. You will not have access to anything that requires a network connection, local storage, location services, WebRTC, etc. This is why things like Electron exist and why experiments like Active Desktop, HTA, the thing linked to in this article, that other project that had the same name as this one, and Adobe AIR were tried.
I don't know about Windows, but on macOS you can. If you wanted to try yourself you could use SingleFile to export a webpage as a .html zip file which you could then just 'open' into the web browser.
For a web app, you might have to unzip it and launch the .html inside. CyberChef for example does offer a downloadable copy of its web app instructing you do just that.
[1]: https://gchq.github.io/CyberChef/