@emileedefwrites In my view, it really depends on what you are going to do to publish your book. If you are going to do it independently or with a Publisher or ... I read a comment once by a writer here (@Lucius_Snow) that said that some of the publishers like something fresh, without having been "touched" before going public. In this case, complete posting of the entire book on online platforms. Of course there are many, and I’m seeing books that
I love being published, situations where books on Wattpad become something much bigger and become physicists or ebooks. My suggestion is to post betas chapters, which make you curious before publishing your book (in any form, in any way). And it can continue like that afterwards. BUT, you can post the complete book here, for readers, and when, and if, you publish it, you remove too much of the chapters and leave it just for tasting. However, if it is really two different versions, a Wattpad and "Physical", do it the way you want, actually; do what you want, regardless of what I said.
It would be cool.
I wish I had helped you, even with this long comment. (^^)
Have a good night!