Depends! A few days ago I watched 25 minutes of how to make a traditional Japanese boot (I have plans to make boots!). Same day I skipped around in a tutorial video on how to use a specific tool because it was too long at 4 minutes.

For a "fixing stuff" channel, I would like things like "this is before, this is after", so I know I'm watching the right thing. Challenge yourself on how to do things extremely fast, if you want to show how to fix a zipper (that is a thing?), show the start of steps normal speed, then sped up/cut away, then end of step. No music for me, it can drown out instructions. And timestamps!