Well, no. It's because Linux has never tried to appeal to casual users. Even if you download something like Ubuntu, you still have to jump through hoops sometimes to install things. People are turned off by using command lines.
With Mac and Windows, you just search up what you want and download it.
Compatability is a huge thing too.
Definitely known. If you do any of the Instagram Reels/TikTok style of scrolling videos, you'd come across him fairly often. I have always been a raging lefty in almost every category but I still saw his debates quite often. They were kind of pushed by the algorithm as ragebait because the things he said were so ludicrous and his arguments were very weak but he was so confident about them.