Announced films do not show up in either credits or the sidebar section for projects in development, on a person's IMDb desktop page
I've just realized that the films with the "Announced" status do not show up anywhere on a person's IMDb page in the desktop version. Neither in the credits, nor in the sidebar section for projects in development.
Here's an example from my own IMDb page. My announced feature film Pure doesn't show up in my directing credits (only my post-production film We Put the World to Sleep is shown in the "Upcoming" section), nor in the "Projects In Development" side section (where only 3 films with statuses "pitch" and "turnaround" are shown). It is only seen in my "Known for" section, but only by chance because it happened to be among the post popular ones.
By default Pure is only shown on my IMDb Pro page and the IMDb mobile app.