Anecdotally - I got the first 2 doses because we had to in order to escape lockdown in Australia. But I didn't get any boosters.

I have not caught COVID yet.

Meanwhile my friends who have the third and fourth dose of the vaccine have also caught COVID multiple times.

I won't be getting the booster. I only got vaccinated because 1. I had to 2. I was told that it would help prevent me spreading COVID to the more vulnerable if I got it.

I was never worried about getting severe COVID for myself. Everything I did - lockdowns (fuck I hated that), masking (I also fucking hated that) and vaccines, I did for the community. Now I wonder, was it necessary? Sweden didn't lock down and their overall deaths are lower than countries that locked down. But if you dared to criticise ANYTHING about government policy response to the pandemic you were labelled an evil antivaxxer who wanted to kill old people and had blood on their hands.