My partner wanted to try the same thing. And cloth nappies and exclusive breastfeeding, and infant hand signals, and every other zeitgeist baby thing you can think of.
In principle EC sounds interesting, but then our daughter arrived, it has balls to the wall survival for 3 months bow. We ended up bottle feeding, use disposable nappies and sometimes we put her on her side to sleep so that she can fall asleep easier. Terrible parenting if you ask any parenting influencer! Neither of us have the time, energy or mental fortitude to get baby naked and over the toilet in the 20 seconds between when the grunting starts and the poop comes!
My advice to you as a new father, assuming you will also be the father and your partner the mother: go into all this with an open mind, and focus on doing what your baby needs, not what you want, and definitely not what the internet says you should be doing. Sun Tzu said the best laid plans don't survive contact with the enemy, so don't get hung up when your plans fall apart when your little one arrives. Support your partner in the things she wants to try, but be pragmatic and prepared for all alternative outcomes. Keep baby's butt dry, keep their belly full of milk (breast or formula or both is perfectly OK), keep them warm and love them loads. That's literally all you need to do, and you will be awarded with the most amazing smiles and giggles by month 2-3.