This probably has less to do with Duplicator and Local and more to do with some differences in the configuration of the database between these two environments.
Specifically, when I see that kind of mangling of characters, I usually think of issues with character sets between the two DBs.
This blog post will give you a better backstory of the issue, as well as a general idea for how to fix it:
But basically, you’ll probably want to export the DB, make some changes to the sql dump to update the character sets and then try manually importing the DB into Local using either Adminer (from the database tab) or WPCLI from within the “Open Site Shell” link.