This is a defacto Torah observance debate by design.
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Acts 10
24. And the morrow after they entered into Caesarea. And Cornelius waited for them, and had called together his kinsmen and near friends.
25. And as Peter was coming in, Cornelius met him, and fell down at his feet, and worshipped
him.
26. But Peter took him up, saying, Stand up; I myself also am a man.
27. And as he talked with him, he went in, and found many that were come together.
28. And he said unto them, Ye know how that it is an unlawful thing for a man that is a Jew to keep company, or come unto one of another nation;
but God hath shewed me that I should not call any man common or unclean.
29. Therefore came I unto you without gainsaying, as soon as I was sent for: I ask therefore for what intent ye have sent for me?
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We don't have to guess at what this vision means. We are explicitly told the meaning of it.
This is the moment when Peter begins to bring in Cornelius, the "first gentile" of this time period. Peter is specifically shown that it doesn't matter what ethnicity or nationality a man is, anyone can be joined-in to the covenant if they believe and obey. The promise is open to those who do not wish to be gentiles anymore.
Peter has preached for ten years without eating like a pagan. He understands the difference between "food" and "not food." Like all the other Apostles we see that, after the Crucifixion, they continue to observe the instructions for righteous living given to believers.
This doesn't change until around the 150s AD with the incredible fomentation of anti-Israelite hatred inside of burgeoning Christianity. This move to create a pagan Christianity not based on the ways of the Apostles was part of the same movement which created a monogamy-only version of Christianity.
I don't know why someone would want to hand-wave away the promises of covenant to all in exchange for a desire of lawlessness, but that has been fashionable for almost 1900 years within mainstream culture.