Hi @ryanthrendyle, you’ve got one of the newer block themes: primarily they’re targeted at businesses right now, and they’re meant for building pages. Most of the customization is in pages, too. Try adding a page and you’ll see what I mean.
For this theme, you’ll use a Latest Posts block rather than having to specify a posts page: you can put posts from whatever category wherever you want, or make a page just for posts.
But, since the posts block doesn’t have as many fancy features as we’ve got on blogging themes YET, if your site will primarily be a travel blog, you might prefer one of our older blogging themes for now: https://wordpress.com/themes/filter/blog