Ingame mechanics inquiry - knockback

[jackies]

Hello,

I edited the post so it won't go out of course.

My question goes as following:

I found out that since I switched my status points from str to vitality my character doesn't knockback the enemies (or pushes back the enemies per hit) anymore.

Yet I think my build would require switching to Str at late game to get the most of it.

That's why I ask you, does someone has information about this ingame mechanic?

I want to hit harder than I do now, but if a switch to str I think I would push the enemies back like before, making me unable to benefit from Sharp Melee (60% melee dmg within 4m)

Is there an equation or anything that helps me understand how much strenght is enough?

Anything that you might think would be appreciated. Thanks.