I’ve never really understood the brush obsessions.
I clean first cleans, facias, soffits, gutters, windows, my van, etc etc. All with an xtreme brush, have done got years on end. I’ve never, ever, needed a different brush.
I just don’t see any benefit. I’ve used other brushes in the past, never made me faster, never made the day any easier, it’s just bristles on the glass, they all do the exact same thing…