If you encounter anyone who denies there was voter fraud and illegality in the last election just change the conversation. Those same people likely believe in a flat earth and you are wasting your time.
In at least four states voter processes were changed illegally. State legislatures did NOT change the process, but Governors or courts did and that is patently unconstitutional. In other states there was actual fraud and in a handful of states...both took place.
While I believe the federal government must standardize the federal portion of elections across the country that will not happen while Democrats are in charge of the House, Senate, and White House. After all, illiberals profited from the election hijinks and it will not be easy to make the simple fix.
Where things can happen is in state legislatures and it is most likely to happen where Republicans are in charge and which is the majority of states. In a story the mainstream media has little interest in covering here's what is happening in Arizona, one of the states where process issues (at the best) and fraud (at the worst) took place in the 2020 national election.