The case was determined by a grand jury of citizens to have probable cause that a crime or crimes were committed. They found sufficient evidence that Trump committed crimes and he should face justice.
Then Trump was tried. He had a staff of high-priced lawyers. He was allowed to campaign from the courthouse and illegally insult the judge, the jury, and everyone involved. Trump had all the rights to defend himself and his money gave him a staff of the best lawyers. He presented his defense. Biden had nothing to do with that. Trump had more power to present a defense than a normal citizen.
Trump is never shortchanged.