Will be needed for https://github.com/matomo-org/matomo/pull/15184
No preference if we merge or not. I would say it makes sense to merge though since it is in the interest of the user to know whether the user has opted out or removed consent etc. The cookie itself is just a 0/1 and can't identify anyone particularly and it is in the clear interest of the user to persist this cookie I would say. It is pretty much a preference cookie.
+1 to merge it
Note, we would also need to update the faq explaining how to disable cookies to mention that this cookie will not be disabled and why.