Sorry for the confusion, I moved it back to its own thread. It was listed as being a Windows-specific piece of feedback on compiling, but it seems in fact you are looking for general book design advice that doesn’t even really have to do with how to use Scrivener in particular?
For anyone looking for how to manage page flow efficiently, here is a link to the thread with advice on that (whether it is illustrations, poem, epigraphs, titles or scenes one is placing recto or verso is somewhat immaterial as all of this is done the same way, mechanically speaking).
In a more general sense, beyond Scrivener, I would not go about manually inserting page breaks to force it because that involves a lot of unnecessary manual labour, both to set it up, and whenever edits might push pagination around and potentially push things from one side of the book to another. To compare, using the technique I described in the linked thread, if I want parts on their own with a blank page to the left, and chapters always on the right, for example, it takes me about 10 seconds to get to that result after compiling from Scrivener. The layout is ideally then based on the stylesheet of the template the compiled content is being imported into.
Is it OK to put the scenes on the VERSO of the Chapter Title
There are no right or wrong answers to that, and sometimes the best way to figure it out is to go through your bookshelf and see how various publishers handle it, and choose from such examples which look you prefer. Some books don’t even cut to a new page for the next chapter, it’s just one long uninterrupted text! Nothing wrong with that either, so long as navigating to chapters is not too important.
Myself, I would only use a “full spread” layout like you describe for Parts, and let chapter verso pages have whatever content from the previous chapter remains. It saves paper, and not many people are going to care that the chapter heading page has content on the other side of the book. The main reason to force recto layout for chapter breaks is to make flipping through the text more efficient. You only need to let one side of the book “fan” with your thumb to find chapter 21 or whatever. Thus what is hidden on the underside of the pages you are fanning isn’t relevant to that purpose, and becomes an aesthetic choice.
Should I add a NEW blank page to push the Scene to the Recto side.
So considering that, I would call that an aesthetic choice as well, unless it is important that readers be able to quickly flip through the paper and locate scenes.