VIF: How high is too high?

My team is comparing two models right now to recommend. They're both logistic regressions but we're using VIF to estimate multicollinearity. One of the models has a max VIF of just over 4 and another has a max VIF of around 3.5. My boss is saying the one with VIF over 4 is too high a VIF, but I'd personally always treated VIF under 5 as ok. The models fit fairly similarly, though the higher VIF option does show a …

boss datascience max multicollinearity team vif