Yep, alot of this is true. I published my book all by myself.
The only thinig I didnt do is format it becasue my computer was so old, I didn't have the capability so I paid a freind to do it on hers.
Its like a click of a button and its done.
You can also find someone on Fivver to do it.
All that being said, it's not easy for everyone. Some people cant punch their way out of a paper bag.
Maybe it's just a lack of time or confidence, I don't know.
The next step is selling it- that's where the stuff gets messy. Most want to write not market.
Build a list, do some ads. get that mother out there.