One of the most inspiring (and insane) feats of strength I've ever seen was Chloe Brennan's lift of the Replica Dinnie Stones (weighing 333kg (734 lb)) in 2022. She weighed ~64kg (140 lb): https://youtu.be/CRaEALQSxTI?&t=434
As a sport, strongman has atlas stones (cement spheres) going down to sizes that most people could lift to shoulder. However, as a sport, the bulk of the training to get strong enough to lift a stone doesn't involve actually lifting a stone. It's a very welcoming group, though, with most competition directed inward toward the self rather vs against another person.
https://www.kaosstrength.co.uk/strongman-comps
Note also that is not unheard of for people to "blank" i.e. not complete any reps of a particular event. It's often said that if you don't (particularly at the lower levels) you're not challenging yourself.
It's also bad form to enter a novice comp if you already have a 300kg deadlift.