1. They lied about masks, first it was irrelevant whether you wore one or not, then they changed their mind and suddenly masks were super important and you just have to wear one or else. The truth is that it probably helps a little because duh, you have some cloth in front of your breathing, it probably catches some particles but definitely not all all the time. Saying that scientific truth evolved is utter nonsense, experts definitely always knew particle size and mask efficiency. They just didn't care and didn't do their job figuring it out and telling people the real efficiency.
2. They lied constantly that vaccines are super safe and super effective, outright attempting to gaslight you that "nobody" dies to vaccines. Which is just a flat out lie. People absolutely died from vaccines and always have. Just stop lying about it.
3. The U.S president himself lied that you will not spread it anymore if you get vaccinated. All lies. And it was definitely already known at the time he said this, frankly it's common sense.
3. They lied about herd immunity which is basically impossible to achieve.
4. Deals with vaccine companies were kept secret, that doesn't exactly inspire much confidence to follow guidances when everyone knows how much money can corrupt.
5. They mounted a massive coercion campaign and constantly shamed everyone in the most pathetic ways possible with patronizing TV coverage. Colbert's little vaccine dance is historic at this point.
6. They strongly suppressed alternative points of view from other scientists and doctors. These were not flatearther tier people, they made good points and many were and are well respected people. And yet they were suppressed anyway.
And after all this you come here with a very generic comment about how disappointed you are that people didn't come together on a base truth. I'm disappointed that you seem to have no complaints and offer such a generic, apologist view of the past.