Depending on the vegetable, I may blanch briefly to soften and speed cook times. I don’t think there is a right or wrong way. Purely a matter of personal preference.
I will tell you two horror stories. First, my mother. She would boil the shit out of anything. Until it was either mush, or a hard lump of something. Part of the reason I have cooked from scratch for my kids all these years, is that I ate like shit growing up, or not at all. I remember having green mush on the plate. “What is this?” “Asparagus!”
Second, my ex. She had some body anxiety issues, and was pretty much anti butter, oils, sauces, marinades, seasoning, etc. Anything that tasted good, in other words. Her favorite dish was steamed broccoli with a baked chicken breast that was just laid in the oven at 300° and cooked until it was leather. Nightmarish. We still laugh about that at dinner time.