I find git reasonably understandable as long as you are using a GUI. When you have a GUI, every action you take provides you visual feedback, so it's way easier to understand the purposes of merges, rebeases, stashes, and resets. My understanding of git workflow greatly improved thanks to it.
On the contrary, I've met plenty of people who struggle along with a GUI because they don't want to learn the CLI. They mash fetch and pull rhymthically hoping it will do what they want with no clue what it's really doing underneath. Eventually, they give up, nuke the repo and reclone it. Most CLI users I've met are at least competent at using git.
I have the opposite experience, the CLI users I see pretty much never use anything besides commit, push and pull, while GUI users tend to use more advanced commands since they can actually see what they do.
