I’ve had one Pfizer jab and thought I’d have good antibodies from when I was (mildly) unwell in 2020 but I’m actually really ill. DH is the same as me (one Pfizer) and was really quite ill in 2020 and is equally unwell now. DS (aged 15) is unwell but not as unwell as he was in 2020 (he was extremely unwell and nearly hospitalised due to his non stop fever) and my other DS who is now 12 has been mildly ill but had zero symptoms in 2020.
So basically, only my teen who was very ill last time has got it more mildly. It seems pretty disappointing that the vaccines and the prior antibodies haven’t helped. I really believed that they would.