This is not true. People who claimed the election was rigged were asked to back up their claims with evidence. Typically they never did, although a smaller number made an effort...but the profferred evidence was nonsensical. I am not just talking about talking heads widely quoted on TV or social media posts, I read a lot of election litigation.

I think the anti-mask people had some valid points, but they sank their own boat by ranting about 'masktards' and 'face diapers' while also demonstrating callous indifference to the large number of deaths.