Crunchyroll and other streaming platforms break Naruto Shippuden into (Volume 1 through Volume 21). Unlike the original series, Shippuden has fewer filler arcs in the beginning but interjects many filler episodes during the final War Arc.
If you are planning to watch the entire "Naruto" story, here is the watch order and the count: how many seasons is naruto
Hope this helps, and happy watching!