Everything you've mentioned here I've been wanting to see in XD: infinite canvas (like Sketch); ability to make lines/rules with arrows or other ends (like the rules palette in Illustrator); and have multiple ready shapes to be able to easily create user flows (like what is available on Mural or Miro). Perhaps an additional "section" to a document where a user flow can be created?
Everything you've mentioned here I've been wanting to see in XD: infinite canvas (like Sketch); ability to make lines/rules with arrows or other ends (like the rules palette in Illustrator); and have multiple ready shapes to be able to easily create user flows (like what is available on Mural or Miro). Perhaps an additional "section" to a document where a user flow can be created?