Break-in matters, 80% for all the parts that need to heat cycled, including gaskets, seals, belts, hoses, metals (like heads), brakes, etc. Proper heat-cycling of metal parts is the most underrated thing when getting an engine broken in and how you do this continually will speak volumes about the longevity of the engine.
I will always want to punch people who talk about modern engineering precision and blather on about rings not needing to get seated, etc.
Read thread linked, and remember the most important thing is to warm up the car deliberately, and gradually, through light driving, and your initial trips should be at least 15 minutes, easing all parts together and getting the darn thing warm/hot via driving.
Heat cycling the parts, through a good warm up and then full warm up, varying how you drive, and staying away from high RPMs will ensure all parts (brakes, rubbers, metals, seals, gaskets, compounds) have heat cycled, seated, and the computers have experienced an array of conditions to be ready for anything, so that when you make your run up to redline in Dynamic or Race later on, everything is good to go.
Special/early oil change? Not enough popcorn and beer on this planet for that discussion. Probably not necessary, but in a world where humans need sleep, you do what makes YOU sleep. I don't do early oil changes for OEM engines at anything other than OEM intervals.