Doug is a friend, but I actually use this so figured I’d chime in.

I make online course content and used to lose close to a full day cutting filler out of every hour or so of recording. This gets me maybe 70% of that time back. On whether you should even cut them, I don’t think it’s clear cut. With non-native English speakers especially, the um is usually a real pause before they say something that matters, and cutting it makes them choppy or changes what they meant. Most of the time though it’s just padding. That matters more for courses than it sounds like it should, because a common complaint I get is how long courses are, so any dead air I can pull out is time I give back to people.

Anyway this is in my workflow now. Still messing with the settings to get it right, but I like to mess with my stack and this focuses on this step for me.