I had a 3 step surgery for two reasons: to give my body time to heal from inflammation (like you stated) and because I was not interested in being under anesthesia for a long time.
I would also recommend the 3 step surgery because with the 3 steps, you will get an end ileostomy to start with. I absolutely loved my end ostomy bc I had all of this new freedom and it’s a very easy-to-get-along-with ostomy. The 2nd ostomy (and the only ostomy you would get with a 2 step surgery) is a loop ostomy and this one is harder to heal from, has more complications, and I just overall really struggled with it. With a 2 step, you would have a loop ostomy for a couple or more months so if you struggle with it, you’ll have to struggle awhile. But if you do the 3 step, you’d have the easier (end) ostomy for the long period and you’d only have the loop ostomy for a month. This obviously a personal preference thing but I will always recommend the 3 step over 2 step.