Jesus emphasized some laws are important
Mark 10:17 (WEB) As he was going out into the way, one ran to him, knelt before him, and asked him, “Good Teacher, what shall I do that I may inherit eternal life?”
18 Jesus said to him, “Why do you call me good? No one is good except God. 19 You know the commandments: ‘Do not murder,’ ‘Do not commit adultery,’ ‘Do not steal,’ ‘Do not give false testimony,’ ‘Do not defraud,’ ‘Honor your father and mother.’”
Exodus 20:12-16;
Deuteronomy 5:16-20
There are other laws such as a woman was to be quarantined for seven days during her monthly period. There is no scientific basis for this, nor for Talmudic interpretations that things she touched would become unclean.
In Exodus the congregation stoned a man who was picking up sticks on the seventh day of the week. This law brought blood upon the executioners as stoning is murder. The punishment was too harsh. The law to do no work, in and of itself a burden. Much of Israel rests on Shabbat. If there is a war, they ignore this law.
There were all sorts of Talmudic laws based on laws of what animals were clean and unclean. Foods were unclean. Corpses were unclean. There were many legal opinions about how this uncleanness spread and remedies such as bathing in stagnant polluted pools.
There were many religious dues and animal sacrifices required. The apostles therefore did not want to impose these on the Gentiles. This is recorded in Acts 15. Jesus spoke about important laws in his speech to the rich man who wanted to live forever. Jesus also recommended the rich man should give aid to the poor.