Peace Hey, and welcome to the community. God says in the Quran that He will guard it, and He has guarded the original Arabic version. So since Satan new he can't change the original Quran in Arabic, he went around it and created the hadith that would ad or go against the Quran in order to confuse us and make us weaker since going against God and following someone who is not a prophet like Bukhari whom God didn't authorised in the Quran would be setting up partners in worship with God means you will loose his suport.
Plus God forbids sects in the Quran and Sunni, shia, sufi and whoever else are sects. There is a hadith that prophesises that there will be 72 sects and that only one will be successful. Now tba doesn't make sense since the Quran forbids sects. Think about it.
This is my underdtanding of it.
May God guide you in your search for the truth.
Thanks