What I have had discussions with people about the "natural" immunity route is the issue is one does not know the variant that they got, or the level of exposure. Because of this, they will be even more susceptible to later reinfection, and the proof in the pudding is the J&J vaccine which has a lower protection capability.
I have allergic asthma, I am on immunotherapy which "tinkers" with IgE and has a rate of death 1 in 750. So when I see folks "complaining" over their fear over 2-5 per million, I just shake my head.
If they didn't come out with boosters, I was going to be going to get the Moderna doses before the holidays since my fully vaxx'd date was 4/20.
I have a horse farm and we vaccinate big time and during risky times we dose it up for protection.