Plugins creating postmeta – will this find those orphans?

Hi, I’m using a download manager plugin that makes a ton of postmeta entries.
I deleted all rows before 2018 from the plugin’s table, but that left a lot of orphaned postmeta entries. Is this software sophisticated enough to understand plugin data and will it

A) delete the orphaned postmeta records while
B) Leaving the unorphaned ones alone?

The example delete query in the FAQ does not look like it cross references anything besides the main posts table. In fact, example as shown looks like it will delete plenty of NON orphaned postmeta records if they belong to a third-party plugin.

Thanks.