Welcome!!
There’s Fibery Documents, but those aren’t so good. Better would be to make a database called “Page” and add a one to many relation to itself (parent and sub-pages). Then when you create a new page in the rich text by pressing “#” then typing a title, then pressing “add new” and pressing “Page”, it will automatically create it as a subpage. (Lots more steps than in notion… yes…)
You can then add a smart folder for the pages, and toggle the circle arrow for it to show parents and sub-pages under each other.
You’re right. Only exists when you have a Date and time field. But I just showcased a workaround here: Weekly view using relations, automations, and board view.
Yeah, you can’t drag and drop entities across views in Fibery, so you might need to filter it it in certain ways, and then show different buttons per view for it to move from view to view based on the field change + filters.
Welcome to this little (hopefully growing) corner of the internet, Rafael! :))