If you’re trying to make it so your home page is always the journal page for today, you could make a sneaky redirection page with this content and set that as your default home page:
- #+BEGIN_QUERY
{:inputs [:today]
:query
[:find (pull ?p [:block/name])
:in $ ?t
:where
[?p :block/journal? true]
[?p :block/journal-day ?t]]
:view (fn [[p]] (call-api "push_state" :page {:name (:block/name p)}))}
#+END_QUERY
It’ll query for the page with today’s date, then when it goes to render it, instead trigger a redirection.