He is comparatively short for the division, 6 foot tall, compared dudes like Jon Jones 6'4, Jiri 6'3, Jamahal Hill 6'4, Jan 6'2, Glover 6'2, Ankalaev 6'3, Paul Craig 6'4, Anthony Smith 6'4.
Essentially he is one of the shortest LHW fighters, which is part of the reason he can be so muscular.
Funny to compare to past eras where 5'10 Mike Tyson was the World Heavyweight champ.