IMO OS vendors could create an electron detection mechanism and start making electron instances use shared libraries and memory for their browser instances as part of a swap in the kernel. When you remove the "virtual OS container" that come with every electron app (their browser instance), you remove a significant amount of resource waste they have. Then they're pretty much QT apps written in python in the level of performance and memory they use.
It's kind of a shame that chrome apps didn't become a thing and electron app installers would detect if you have chrome and just install themselves as chrome apps vs an electron app. That would've been another legit alternatives.
If the OS doesn't get updated, then some of those electron apps might stop working properly as they are expecting to target a particular version of Chromium.
It would be a bit smarter and generalized than that, it would detect new chromium 'version bases' and differentiate based on that. Eventually it will stop working, but if you don't update your OS after a certain point, new app versions wouldn't work anyway, or they would fall back into standard mode.
It's kind of a shame that chrome apps didn't become a thing and electron app installers would detect if you have chrome and just install themselves as chrome apps vs an electron app. That would've been another legit alternatives.