Are there any point(s) of no return?

I'm on chapter 6, and so far the game has warned me three times (twice through menus, once though a character literally saying "This is the point of no return!") that I'm reaching a point of no-return (or at least I won't be able to return for a while).

The first two were seemingly fake-outs. I haven't progressed past the third yet. Are there any real point(s) of no return?

Solution 1:

No, not really

There are chapters that you do not have access to the means of returning. You always come out of those chapters eventually and have one or all of your travel tools back at your beck and call. In general, there is no point where you cant ever go back and finish things you have missed.

It is worth mentioning there is a 3rd continent near the end of the game you access for the main story line. Once you have entered into the final chapter of that continent, Chapter 13, and finished it, there is no way to return to that continent.