To some degree for sure, simply because they have to by law.
> Or amplify specific views? Or suppress the reach of certain others?
They have the technical capabilities and what Meta in particular does: I don't know. But given the social media landscape as a whole (not only platsforms by Meta) and seeing so many nutjobs having tremendous reach with lies and fake content, I really don't think there is a lot of suppression or view-shaping going on. The views would be a lot more homogeneus if you were being manipulated on a large scale.
Since you mentioned the conflict in the ME: There are proponents of both sides with tremendous reach and depending on your bubble, you either see more of the one side or the other. But of course, since the immediate conflict has been going on for a while, the sentiment changed.