you can do the same type of conditionals for equipped gear as you can for talents

Code:
equipped:<item type> or worn:<item type> — item type is equipped (item type can be an inventory slot, item type, or item subtype).
https://wow.gamepedia.com/Macro_conditionals

a handful of my gse macros have talent conditionals in them from legion.
I've not yet bolted down my BFA ones enough to start worrying about it.

tbh, multiboxing there isn't that many times I change spec