I have approx. 15 years of experience working remotely for various companies all across the globe and was always an advocate of thesis that remote work is difficult and most people aren’t cut for it and (to horror of many proponents) and on average are less efficient than on-site hires.
There are many reasons: It’s difficult to understand _intention_ when deprived of non-verbal communication and working in a choppy network call. Even if one can gloss over communication needs etc. there’s burnout looming around the corner and natural, healthy laziness getting into the way. Sometimes even internal politics might be blocking knowledge/access/contribution for more or less peculiar reasons.
It’s not like it’s impossible to hire remote engineer, yet my (completely unmetered) estimates out of experience is that approx. 10% of engineers willing to work remotely can sustain health (physical and mental) and be efficient outside of 1-2 years of honeymoon period.
There was some tumbling around COVID but IMO both stationary jobs and remote ones are doing well on mid-high quality positions.