One of the things I love the most about SEO is that I continually find new things that affect a large number of pages on one site, that have never been an issue on sites I've analysed in the past.
Today's new video covers a specific example, referring to the character people use before adding their branding in title tags.
I can't say too much since these updates are available to read by non-members as well (though the content isn't), but I think you'll find this one interesting.
Here's the link: https://seoblueprint.com/spacing-issue-in-titles/
I really hope you like this one.