Anyone notice little difference in Auto or Home quote $ amounts in recent years?

Trying to move on from bad auto club insurer relationship but can’t find much of a deal. Any insurance insiders know the systems insurance agents / brokers use to look up your current insurance?
It seems like they all come in very close in price over the past few years even pricing just under your current carrier.
Can they somehow see what you already pay? Or are the actuarial programs so precise they come in close on pure risk and coverage?