Practically every video that demonstrates "how to", makes it sound as easy as possible. That Park Tool demo shows the bike on a stand.

Also , there are the "hard to" get off types, where somebody earlier really tightened the pedals unnecessarily. Maybe there's a video on that already.

Most always, the demo involves a man with sufficient muscle to do the work, whether its fixing a flat, or something else. Get a size 5'-2" rider weighing 105 lbs. and watch her do the demo.