truthfully since the authorities kept getting things wrong (and were (are?) deeply politically corrupted) I started getting pandemic advice from twitter in the middle of the pandemic. Sad I know, sad. I knew it was kinda crazy but it seemed the only sane thing. I followed Gregg Gonsalves, and Carl T. Bergstrom and Caitlin Rivers. Zeynep Tufekci the sociologist writer for the Atlantic is a kind of genius (I even made it through an Ed Yong or two piece too). I found them late but journalist David Wallace Wells (yes the Uninhabitable Earth) was also insightful although I wouldn't take final advice from them. etc. etc. etc.
There were major failures at the CDC and the WHO (from why did they get initial testing wrong with the CDC, to why didn't they acknowledge airborne transmission until long after it mattered - was it too inconvenient a truth?). I don't posit deliberate (sometimes you do wonder, but that's a high burden of proof shall we say) but we're not even going to evaluate what went wrong and just pretend they got things right? Gah, well that will sure prepare us for the next pandemic!
The case for the vaccine was just: what do you want to take your chances with covid or the vaccine? Because you can run but you can't hide forever from the virus. Uh duh the vaccine. Boosters, it's weaker as we don't even know how long immunity lasts, so convince me I even need a booster. Do I trust the current state of medicine? Oh gosh no, but this one disease is the most studied on earth right now, so there is that. But one still has to make health care decisions (like getting a vaccine) with imperfect information in the world as it is now.