Given what counts as "feature rich" these days (and it seems some developers are constantly removing things that users used to use), I doubt that.

Software used to be both fast and "feature rich" (relatively speaking), designed so users could "grow" and learn increasingly more of it. Now almost everything seems to have idiotically dumbed-down "flat" UIs that look simpler yet still manage to consume more resources than before.

The new Skype is a great example. Compare to something like this: https://www.microsip.org/ Yes, I know they're different protocols, but the point is that IM and audio/video call functionality doesn't need to take as much resources as Skype does.

The new Skype is a bad example. It's a perfect example of a designed-by-a-committee-of-managers product that tries and fails to understand the moving part of alternatives such as Slack, Facebook Messenger etc.