Anyone know if there should be seperate Meta info for pages that are duplicated through aspx?Displaytype URL's?

I am working with a client that has a lot of pages that are indexed as .aspx, .aspx?displaytype=fullsite, and .aspx?displaytype=mobile.

There are about 25-30 pages that have this same problem and from my understanding of SEMRush, AHrefs, and ScreamingFrog is that they are being regarded as duplicate content, title tags, and meta descriptions.

Should i create title tags, meta descriptions, and unique content for those individual pages, (.aspx, Fullsite, Mobile) or is there a way that I can add a no crawl or canonicalization of something to those longer URL's that make them not to be crawled?

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Thanks!

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