No, the Earth is not flat because a Flat Earth society says it is. Nor are vaccinations infused with microchip tracking devices as legions of crazies assert.
Too many people are informationally off the grid, willingly accepting of the pseudoscience or outright false science promoted by various sources.
Regrettably, too little meaningful effort is expended to purge the web of misinformation. As consumers of information, we have to do this ourselves. I encourage everyone to evaluate the sources they use. Use the aptly-named CRAAP Test. Appropriately inform yourself about important issues such as Covid-19, climate change and global warming.