Working outside of working hours doesn't make your colleague a 10x developer. Your question reminded me on an episode of Soft Skills Engineering where they ans

Working outside of working hours doesn't make your colleague a 10x developer. Your question reminded me on an episode of Soft Skills Engineering where they answered basically the same question - https://softskills.audio/2018/08/20/episode-120-layoff-decisions-and-over-working-peers/ https://softskills.audio/2018/08/20/episode-120-layoff-decis... - the relevant part starts at 19:57. It's a great podcast in general.