I left Jet2 to return to Ryanair. I wouldn't describe Ryanair as toxic more that if you know what you're getting and more importantly not getting and can live with that and enjoy it then you'll get along just fine. Quick commands at both RYR and Jet2 but several years wait at Tui i believe.
The 5/4 roster was the reason for me, I can plan for my kids now and as ones just started school and another starting next year it works a treat for us.