The claim
Serving many low-value, duplicate or faceted URLs consumes crawl budget and can slow indexing of valuable pages on large sites.
What the evidence shows
Google's crawl budget documentation frames crawling as a function of crawl capacity limit and crawl demand. It explicitly warns that low-value-add URLs - faceted navigation, duplicates, soft 404s, infinite spaces - waste crawl resources and can harm a site's ability to get important content crawled and indexed promptly.