Twenty Twenty-five navigation

I’m using WP Twenty Twenty-five to create a simple blog. So far I really love it. But I’m having an issue with the navigation — getting the links to open in a new tab.

I’ve added a link to an external site, a link to an internal page, and social icons. (I did this through Appearance>Editor>Navigation. The Social Icons block actually has a toggle to “open in a new tab” and that is working perfectly. But the Page link and Custom Link don’t have that toggle switch in the settings. If I scroll down there’s a spot for “Rel Attribute” and I tried adding Noopener noreferrer to that. (hubspot told me that would force the link to open the link in a new tab). It’s not working, though. I’ve looked on YouTube but I think this theme is too new for there to be detailed tutorials. I found one on navigation, and it covered everything except how to get a link to open in a new tab if there’s no toggle. : ) Thanks in advance for any insight, I appreciate it.

The page I need help with: [log in to see the link]