Update:
I’ve tried changing the “category title” under “archive pages” to “%%category%%” but it didn’t work, it still says “GD Archive.” I think this is because, like previously mentioned, if Yoast is enabled no changes in GD Settings>General>Titles & Meta will work. Which is why I made the suggestion of moving the GD titles out of “titles & meta” settings, and change it to just “meta,” and make a new section in the GD settings for titles, because Yoast doesn’t control page titles, it only controls meta page titles…two very different things. Hope this makes sense so it can get added to the suggestion box 🙂
For now my only option is to hide it with css, because using Yoast is a must for me. Unless someone can help with a php snippet, but I guess thats not possible…. Just seems funny having a random H1 title in there for GD archive, not optimal for SEO but also not a huge deal 🙂