Saw this under comments for the booster.
"They definitely are necessary for the immunocompromised. I have a friend who had a kidney transplant two years ago, and even with both doses of the Pfizer vaccine AND both doses of the Moderna vaccine, her antibody count remains dangerously low."
Why yes, yes it would. Does she get this? No, not at all. And apparently, no doctor knows this either.
Perhaps it helps that I have a lot less education than a doctor? I just learn how things work and apply the patterns elsewhere.