Almost as soon as the voting was over, President Biden once again said that he wants to sign a ban on pretty much every firearm sold in the U.S. Though he likely doesn't have the votes to do so in this Congress, this balance of power does give him some opportunities to go after our freedom.
Semi-automatic firearms have been popularly sold to private citizens since the late-19th century. They are the most-popular design sold today and have clear constitutional protections. So, no, the president doesn't get to tell us we can't own them.
The most-consistent—and likely most-accurate—thing President Joe Biden says about firearms is that he wants to ban them.