Electron-based apps are not PWAs. PWAs do not need to be wrapped in a browser engine of their own, they use the installed browser engine. They are not inherently bloated or resource-intensive in any way.
There are not many good example of great PWAs precisely because Apple has been crippling web capabilities on iOS by banning other engines and degrading the experience in Safari for a decade.
There are not many good example of great PWAs precisely because Apple has been crippling web capabilities on iOS by banning other engines and degrading the experience in Safari for a decade.