I did one day with Trail Keepers of Oregon working on rerouting a trail on Angel's Rest, mostly using a Pulaski to make a trail with the correct pitch.
About a quarter of the time when I go backpacking, I take a folding saw or lopers, especially in the spring when there are many branches across trail. If you cut the branch off at least 3 feet from the center of the trail then it's good. Sometimes I'll cut it further, especially if that makes it flush with a main branch.
I figure we're short of budget to clear trails and that helps. Especially if I'm hiking in, like 10 miles, and then clear a section of trail, it's not that much work for me but would be a major pain to get a crew in there to do it.