Status of large-scale structure formation within cosmology today

Question

Since the CMB results of the past decade, would it be fair to say that the concensus among cosmologists is that cosmic strings are no longer considered as a (major) source for density perturbations?

Is so, what are the leading theories to explain how the universe developed inhomogeniety from a nearly uniform early universe?

What are the active areas of research for within structure formation today, besides relying upon relativistic pertubration methods? Is there a recent review for a status of the field today?

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