Current situation:

As per this article (https://ahrefs.com/blog/unlinked-mentions/), if you're trying to find unlinked brand mentions as part of a link building strategy, you may use a term such as:

ahrefs -site:www.ahrefs.com

This works well if you have a brand name which is not used out of content.

However, if you have a brand name such as "Apple", then it doesn't work as that word could be used to describe the fruit, a body part (Adam's Apple), or New York (The Big Apple)

Suggestion:

What would be really helpful if we could make the search (or filter the results) case sensitive.

This, would make it a lot easier to identify occurrences which were capitalised (as commonly done when referring to most brand names)

In addition, combining this with negative words would make Content Explorer much more powerful in identifying "Brand" mentions for common words.

For example

Apple -Big -Adams -site:www.apple.com