You can't really quantify such a feat. The feat is, Goku and Beerus punch each other in the fist SO HARD that it sends out a magical(not saying it was actually magical) shockwave that somehow gets stronger over time even though that makes zero sense. This wave propagates through the normal universe, crosses into different planes of existence and even reaches places that are noted to be outside the universe itself.
This feat can be interpreted as one of the two things.
1) The wave is a product of Goku and Bills' combined strength. The fact that it works in such a baffling way is an expression of their raw physical power so their strength is effectively infinite because the wave can literally never stop because of how it works.
2) The wave is not a product of their strength, it's some weird effect of God Ki (or something) that is divorced from Goku and Bills' physical strength which renders it meaningless.
Now, those of you who are observant will be thinking; "I don't know Cody, that second option sounds like a pretty big reach," and you are correct.
Especially since Goku...
Goku...
*Rubs bridge of nose*
...dear god...
Because Goku matches the force of Bills' blow perfectly and thus magically(again; not literal) cancels out the force that should have been generated, it illustrates that the shockwave is tied to their physical strength.
So yeah, I don't know man, infinite strength.
Another explanation for this strange feat I've encountered has been that the clashes are causing Beerus and Goku to leak God ki. Close to the fighters, the God ki is still mostly harmless, because of the known ability of Dragonball ki users to mostly control the damage generated by their energy attacks. However, as it expands away from the fighters, this control degrades allowing the God ki shockwave to cause damage.
The downside is that this would essentially require both Beerus and Goku to have power in a mind-boggling scale.
So I don't think it should be used to say either of them are any sort of universe busters. But it shows that they could at least hit hard enough to hurt Thanos on the lower end, or Pre-Crisis Darkseid on the upper end. Which is impressive on it's own if you know what the durability of those two are like(hint: the first one was right in front of a recently "opened" black hole that was so powerful that it was sucking in stuff from 2 light years away. Thanos not only survived being in front of it, but was only lightly wounded:
And PC Darkseid was capable of shrugging off blows from Pre-Crisis Kryptonians. Even Val Armorr, who has shown to hit just as hard as Pre-Crisis Superman, was incapable of hurting the guy with his hardest hit.
So at the very least; they can really hurt Thanos. At the very most; They could really hurt PC Darkseid. For you can't say they have infinite strength with that feat alone, it is so absurd that it is next to impossible to reliably quantify without adding a lot of bullshit. Yet it is so significant, that it can't be ignored. And unlike some of the more commonly used "feats" for pre-flashpoint Superman, there is no missing context being left out of this feat. And it is basically one of SSG Goku's first feats as BoG is no longer canon. It is basically on the same level as Superman 4 millions feat of punching so hard that the blows send distortions through time(though he was on his last reserves of power, meaning he could hit a lot harder in his prime, making him essentially stronger than SSG Goku, but that isn't the point here).
TLDR: The feat shows that Goku can hit hard enough to hurt some big time fictional beings now. But I wouldn't say he is universal due to the absurdity of the feat in question.