Like, with Drax we are talking Alien here. The same with Superman. And in the MCU and DCU, Aliens don't have the same baseline abilities as Humans.
In D&D 5e, all playable races have the same baseline abilities.
Without adventuring/Player or NPC Classes all creatures are around 8 to 12 in any ability score.
So the average person of any race can lift around 300 pounds (lifting is 30× strength score).
Some races like goliath double that, so that's 600 pounds.
That is the baseline. I only now MCU Drax and not comic Drax, but he seems to fit as a Playable D&D race (if I remember correctly). He doesn't seem super strong like Superman, who can lift millions of tons.
Strength also defines how far you can jump, which is strength score in feet. So a mundane person D&D person who gets his strength score to 20 is the baseline for strongest non magical character.
Which, as a goliath would be 1200 pounds lifting, 600 pounds continuous carrying and 20 feet jumps.
If a hero does more than that, he would count as supernatural in the context of D&D.