Not really that worried but rather curious about your opinions. Use what suits your demands best.
But for starters:
Electron is a framework based on Chromium used to develop desktop apps. Examples of apps that are built on Electron are Discord, Element Desktop, MS Teams, Slack, GitHub Desktop, Atom, VS Code and counting
I was not aware Firefox removed native support for it. At least I thought it supported it.
From https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/Guides/Installing
Apparently, it’s not an official extension by Mozilla either, but published by a third party.
I don’t even really need it to be fully compliant, really. Just let me launch it in a standalone window without the URL, tab, and status bars. :shrug: