Yes. The available evidence shows the 2020 U.S. election was conducted fairly and that Joe Biden legitimately won.
State audits, recounts, court proceedings, and reviews by election officials—including many Republicans—found no widespread fraud or irregularities sufficient to change the outcome. Federal election-security officials called it “the most secure in American history.” There were isolated administrative errors and individual cases of improper voting, as occur in many large elections, but none came close to affecting the result.