If the character is indeed "pushing" the other (Similar to how
this giant monster is pushing this robot), then yes, both characters are comparable in LS
Not necessairly
Like,
this guy can lift 500kg, however, his weight definitely ins't equal to 500kg
If you have enough strength to lift his weight then you should be capable of doing so, however, you shouldn't be able to do the same if he exerts force against you trying to lift him