Biden is unlikely to be our most popular president ever, but he did a generally good job. Trump inherited a strong economy from Obama, then trashed it with the help of the pandemic. Biden got it back on track, but there is more to be done. The economy doesn't turn on a dime. Each president inherits the economy of his predecessor. This means things may continue to improve over the next year or so due to Biden's efforts. Whether that continues depends on Trump. If he does impose significant tariffs, prices will rise, and American exports may have trouble as other nations respond with their own tariffs - in short, a trade war.
And no, the 2020 election was not stolen, no more than the 2016 one, or the one this week. Countless judges, many appointed under Trump, have confirmed this. Actual fraud in all cases has been negligible, and mostly caught. If anything, the ongoing concerted efforts at voter suppression have reduced the progressive vote more than the populist/reactionary vote, but perhaps not enough to have changed any of the results. Trump whined about this even when he won. Harris didn't concede to be a nice guy, but because that's how democracy works. We all know Trump would not have done the same, even had Harris won in a landslide.