I know "10x engineers" exist; some people are fakes and put forward things that look like they have high impact but are actually a bit shoddy. Some people like to be present and suck up. But some people really do just work hard, smart and have deep passion for what they're doing- and importantly: pride, which makes the quality of the content great too. Some of the best engineers I know "visit" bits of code or infrast…
When I left my last job, part of what I was doing was replaced by a team that built up to 5 engineers last I checked. They're doing it more intensely (although, I don't think with better results), and they've got to have a lot more communication than when I did it (I was trusted to do cowboy deploys to an isolated system, they've got to deal with code reviews and just making each other aware of what they're doing because 5 people in a small system means overlapping work). And, I did a bunch of other stuff too which AFAIK didn't really get picked up, but hopefully they've been lucky and not had weird TLS problems or other 'select is broken' experiences lately.