I switched to journalling and planning on paper this year. Been loving it so far.
https://academicalnerd.blogspot.com/2022/01/analogue-note-taking-digital-mess-we.html
That's quite an interesting approach! I have a whiteboard myself for brainstorming and physics, and it is indeed superior to digital format in certain aspects.
For me saving and freferencing journal pages is more important, but I can definitely see the appeal of the whiteboard.