The Infinity War creators call Thor's Stormbreaker attack on Thanos a power feat, and say that he could have killed Thanos.
There is no WoG statement that Thanos held back on Thor with the Gauntlet, no WoG statement that Thanos had limited use of the stones full power, and no WoG statement that Stormbreaker used hax against the Gauntlet.
Eitri making both weapons and knowing how to make a weapon that can beat the Gauntlet does
NOT equate to hax, nor that Thanos had limited use of the stones' full power.
Thanos holding back against previous opponents whom he actually overpowered and beat is
NOT evidence Thanos held back against Thor, whom he already failed to kill with the Power Stone.
Thanos also changed his facial expression by grimacing while futilely firing against Stormbreaker. That is physical reaction.
So Thanos had time to physically react against Thor, tried to overpower Stormbreaker, and failed, despite having unlimited power superior to Dormammu, whom Wong already stated is a being of infinite power and VSB acknowledges is 2-B.
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The book "The Art of Marvel Studios Thor Love & Thunder" says:
"As Gorr steps through, they all find themselves before
the cosmic entity he was seeking: Eternity"
"
Eternity, the living embodiment of the universe, was introduced into Marvel Comics as long ago as 1965's Strange Tales #138, from the boundless imagination of Stan Lee and Steve Ditko.
In sheer scale, he is the biggest character that Andy Park has translated for the Marvel Cinematic Universe"
"But eventually, Taika went, 'Let's keep it simple and
stick with what Eternity looks like in the comics"
Note that VSB has comic book Hank Pym scaling to
low outerverse level ATTACK POTENCY for ascending to Eternity's plane of existence.
https://vsbattles.fandom.com/wiki/Hank_Pym_(Marvel_Comics)
Note that VSB has MCU Celestials at multi-galactic attack potency based on sheer physical size.
https://vsbattles.fandom.com/wiki/Celestials_(Marvel_Cinematic_Universe)
Low 2-C MCU Eternity's VSB profile says it has a "pocket reality"
https://vsbattles.fandom.com/wiki/Eternity_(Marvel_Cinematic_Universe)#:~:text=5 References-,Summary,universe, expanding life and creation.
But there is no WoG statement that Thor enters a "pocket reality," instead of standing before the true Eternity itself
The only WoG statements available (which I provide here above) are that L&T showed the actual Eternity, which literally is a universe.
The book "The Art of Marvel Guardians of the Galaxy" says that:
https://www.google.com/books/edition/Marvel_s_Guardians_Of_The_Galaxy/u25EDwAAQBAJ?hl=en&gbpv=1&dq=Marvel's+Guardians+Of+The+Galaxy:+The+Art+Of+The+Movie&printsec=frontcover
"Eternity represents all time in the universe, and has unlimited ability to manipulate time, space, matter, energy, or reality."
The official Disney Plus audio description of this scene says "Gorr approaches a giant seated figure whose body resembles a view of the cosmos."
The cosmos means the universe.
https://www.merriam-webster.com/dictionary/cosmos
https://dictionary.cambridge.org/us/dictionary/english/cosmos
That means Stormbreaker, by summoning the Bifrost, can transcend people to a
Low 2-C higher dimension -- not a pocket reality -- beyond the time and physical space of the universe and grow them in physical size to large multi-galactic based on onscreen visuals.
And
Thor currently possesses Stormbreaker. Growing to the size shown in the image below is itself sufficient to give Thor 3-B attack potency.
Again, alleged anti-feats do not negate actual feats. Whatever low end anti-feats Thor may have, he still has these high end feats.
