Someone referenced this in the first chapter. There's a novella by Ted Chiang called Story of Your Life that kind of goes into free will and determinism alongside knowing the future.
To put a very well-thought out take into an oversimplification, think about it like this:
If you could see your own actions in the future, while you still ostensibly have the free will to do something different, the future you've seen is predicated on you having seen the future, meaning you chose those actions because what you saw pleased you, so you will always choose the actions that lead to the future you saw.
Hopefully that makes sense, the full discussion is a bit too esoteric for a manga comment section and can get a bit into quantum theory but
That's honestly an interesting way to close the issue of pre-cognition while retaining free will, especially in conjunction with the limits she established in chapter 1 that 1) Visions are random 2) She cannot significantly change what she saw 3) All she can see are visions of people or things close to her.
Future visions are usually about 5 camps: inanimate things like wind that you cannot influence, sentient creatures that you cannot influence, those you've haven't told the future to, those you have told the future to, and yourself.
Those she don't have influence over are already taken care of by her power's limitation in that she won't see any visions about them. So all you have to worry about is those you can tell the future to and yourself.
Normally, future vision stories about how theyncan change stuff or tackle things a protagonist's lived through or seen willingly with a power they control. But with the visions being random, your theory melds well.
Take seeing visions of the lottery numbers. Either she wouldn't use it herself (be it morals of thinking that its cheating, or it being a different thing from what will bring her joy in the end) and she sees them to no effect, or she wouldn't see them at all (because visions are random.)
Personally, I'd extend the concept to say that future visions probably also show the best outcome for the most people visually. There may be a caveat of not being able to (significantly) changing the future but it's a completely different thing from not being able to change it at all. We may not know the extent that she can change but that small leeway clears the few remaining contraditions nicely.
Given the culture of Japanese people hiding their inner thoughts, she could still end up with the same sights, sounds, and tastes but not the same person person. Her visions of her loving, doting hubby might change to a hubby that says those same lines but with apprehension. Or they may be as extreme as a loving wife eatinf dinner with a husband, but not as loving or doting. And any contradictions can still be swept away by the fact that the visions aren't summoned at will so visions that can change greatly by telling it to someone just never appear.