My last gig was about two years at a $1bn / 400 employee SaaS company. In my tenure, multiple people re-joined after leaving, and several people who left while

My last gig was about two years at a $1bn / 400 employee SaaS company. In my tenure, multiple people re-joined after leaving, and several people who left while I was there have since returned after I left. When I stepped down, I was basically given a standing offer to return whenever I'd like. In my gig before that, at a blue chip tech company, in 7 years I never saw anyone return, but most of the departures were due to layoff/RIF so that somewhat makes sense.