When I say recently I'm talking the past 10 -15 year's, not last year Herol Bomber Graham? Ken Buchanan? John Conteh? Randy Turpin?
Drop them in the current Boxing Meta and they all become Lineal IF the opponents in their respective divisions agree to fight them, which is very unplausible given the severe lack of balls in boxing today, specially in Ken's division.
With four world belts to choose from and 15 years of possible openings, yes. I’m sure those guys could have gotten their hands on something at some point
Buchanan would be undisputed and P4P number 1. Conteh would be a strong force and world champion at LH. And I still think Herol would have found a way to get knocked out lol.