Here is a historical game, Marvel Super Heroes (famous for its "faserip" system).
I modified the image when thinking about smoothing out the curve of magnitude.
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D&D 5e characters seem to start out around "Good" (10).
For example,
Marvel Thor has "Unearthly" (100) Fightning, Weather Control, Dimensional Travel, and hammer, and "Shift-X" (150) Fly Speed.
Iron Man has "Amazing" (50) Strength and "Monstrous" (75) Endurance and Force Field.
Captain America has "Amazing" (50) Fighting, "Incredible" (40) Agility, but only "Excellent" (20) Strength, while wielding a "Class 3000" (!) shield.
And so on.
The idea is. If we can approximate these superheroes as 5e characters, then we can use the benchmark correlations to look across the entire superhero genre, to get a sense of what the Fighter class should be able to do at the appropriate level.