The screenshot with the operator "Install" page https://opendatahub.io/static/8f3f14cfa7050b5dbfa52814fa2cf210/29007/install.png shows in the greyed out part that project opendatahub-operator-system is selected. Such a project does not exist on a fresh OCP 4.12 installation. It'd be better if the neutral All Projects was shown on the screenshot. I believe the image in question is src/content/assets/img/pages/docs/quick-installation/install.png in the repository.