Sure that happens all the time, and we hear about government officials (police) killing people almost every day lately, it seems. I'm the last person that will ever argue that governments always do good. I think all current governments work very badly and we need to find a better way to organize.

But there's a ton of publicly available data on covid effects (including mortality) and the effectiveness of covid vaccines from many, many different sources (tons of researches in many different countries). The ideas that this is all just some government hoax or attempt to control mankind, etc are just too implausible.