I created a page through linking while I was in a paragraph, but then it occured to me that the page was better suited as a node/block inside another page. I can’t find a way to move it to that page or to drag and drop it.
Also, related but maybe worthy of another question (tell me, in case): is it possible to create a new block in another page directly through linking (something akin to Notion “create subpage in…” while mentioning).
You can use the “Move block” command. Place your cursor on the title of the page (this works for any block you want to move) and press Ctrl+Shift+m. This should open a dialog where you can search for your target page, then press Enter.
As for your 2nd question, there isnt a command for that, no. The closest thing we have is that you can use namespaces directly when creating a page through linking. So for example, say you have a page “Home”, and in your journal you type [[Home/Health]], this will create Health as a page inside Home and link to it (you can do the same thing via the Cmd+k menu)