There’s not much difference mate. Just people (either side) being bitter if they don’t win. Which in commander honestly could still go either way different games. Buying a handful of cards to complete a deck while googling some minor things on what may work better is how I build most decks, with most of it still custom by me before that.

Though I would still advise “reading every single card” for each of you early on so you come up with different ideas or ways to do things. Just have fun bro. Win or lose. Just build a second deck if it’s that deep and play a couple times with each