Hello @Stephen5, Thank you for sharing your thoughts on Figma Slides. I’ve updated your category to “Share an idea”.
Here at Figma, we greatly value and encourage feedback and ideas from our community. Within this forum category, you have the ability to vote on your favorite ideas and features.
For your second idea, the feature to create and publish custom slide deck templates is available on the Organization and Enterprise plans.
I also found a similar feature request that you might be interested in, please take a look!:
If you’d like, I can merge this post with the one above to consolidate all the similar feedback in one place for greater visibility. Please let us know if you agree with this.