You even ask? It should be tight on the ARB
If not done you'll be due for a refresh of the droplinks (which you're doing) lollipops and ideally the wishbones with 2 ball joints on them.
Do the lot and have a realignment done
If it was jacked up then I'd expect that from a tired original bushing. New rubber are about £6 each from BMW, poly about £40 a pair from CarParts4Less. I swapped mine for rubber but will be changing to poly soon.