When I clicked the CE button and entered a search term in the search bar at the top of the result page, I got results from the EE and Omnibus sections.

I did not expect that. I was hoping I would be able to search just within the applicable section.

I think it would be worthwhile to consider separating gitlab.com into its own section, distinct from the EE area. A lot of the content in the EE section doesn't apply to .com users, and the tone might need to change when the reader is just a user of your site rather than someone managing the EE situation. Maybe you alrleady have a different help area just for the .com that I don't see linked.

I like how you're building the site using GitLab Pages and all your other tools! Nice.

Turns out this is actually a GitLab Pages workflow tutorial in disguise. Thanks for sharing.