Hi @DevinBayly!
Yep - you got it! There’s a different publishing interface in next. The language has been re-worked so that it’s more clear to users that a ‘link shared’ notebook is public. This differentiates it from a ‘shared’ notebook (sharing can be done from a personal account; and also within Teams).
You’ll also find (as recently announced by Wayne) that you can set a custom URL slug, which should allow you to import from a nice, meaningful URL rather than just the randomly-generated hash value.