Kapotas was always a Litvish thing, not Chasidish.
The Minhag in Chaim Berlin, which isn’t Chasidish, is to wear a gartel. This isn’t new, it’s always been the case there. Other non-Chasidish kehilos might have similar minhagim.
I never saw American Litvish wear a shtreimal. No idea where you got that thought. Yerushalmi Litvish always have worn shtreimals.