Welcome to the Q&A Forum

There's a pretty rich discussion of how our near-duplicate detection works on this thread, but the short answer is 'yes.' The more unique content you have on a page, the less likely it is to be identified as a duplicate.

Our duplicate detection for campaign crawl does not strip out headers, footers, sidebars, etc., and so if the unique content of the page is very small, the common elements will dominate our consideration of two pages as duplicates.

As Prestashop pointed out, there is an existing thread on the subject. I've added some details about the implementation to the existing thread.

Incidentally, someone reported and we've subsequently confirmed that domain / subdomain targets now only work if a trailing slash is present. With this issue identified, we'll have a fix in short order!

We're currently not experiencing any operational issues of which we're aware. Are there specific pages you're having trouble finding links to? Have you tried first checking for links to that domain rather than to a specific page?