I like most all of us of that age listened to them in high school. Yes, we were pummeled by them on FM radio.
Then I got a bootleg set of their MSG shows (75 I think). All of them and the whole shows. I could not believe that the length of ever song, every night was within a seconds of each other. Whole Lotta Love at over 20 minutes was within a few seconds in length each night. Totally turned me off. Thought they were a rock & roll band that jammed. NOT.
I think of other rock bands of the day that jammed out. My favorite bands had different set lists and different versions played of the songs. Given what good musicians each of the Zep members are/were, I was just astounded that they couldn’t mix up the jams.