No, it’s for pve only. People with xp off get separate pvp queues, but we don’t get separate dungeon queues.
There are still level 20 and 50 pvp twinks with xp off by simply not paying for the full game or not buying shadowlands.
@OP, even though I have few spells, I have 24 binds including consumables and my frag belt. I have about the same amount of binds on my HDH running the easy build.