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
Agreed. You can’t install as an app, just a home screen shortcut, notifications don’t take you to the web page when clicked
I use PWAs for some things, but I wish they worked better