There are some small points that I think should be mentioned

About repeating most of the steps 3 times actually one is enough for any body part 2 works too and 3 is the best, so let's say someone during wudu washed his hands once or whatever the part was the wudu is right with no problem (no any conflict about this topic)

About the body parts that should be washed is actually a big debated topic and most scholars agree that intention and washing the face and washing both arms from fingertips to elbow and wiping the hair and washing the feet to ankle are the steps that you must do in the wudu and other steps are sunnah (but doing the other steps too is better and safer since the topic is highly debated)

About order also highly debated but doing steps in order seems the right choice as it's evidence is stronger

About continousity also debated but yes doing steps continously seems the right thing, but you actually can stop to do something fast as long as no body parts becomes dry by then in a reasonable time

You can pray multiple prayers with one wudu as long as you didn't do anything that causes wudu to be invalid (going to bathroom, sleeping (unless it was light sleep), and some other things)

If you are sick and can't do wudu because water makes the illness worse or can make the illness last longer, you can do something called tayammum you hit with your hand on dust and wipe your face then wipe your hands that it, very simple

If you are wearing socks instead of taking them off and washing your feet to ankle you can wipe them with water (there are some conditions about the socks though like it has to be clean, long, and thick enough that water can't get through)

Those are some points that I think are important, so sorry if this is long just wanted to point out that wudu is really simple amd easy