The 2020 US elections were a reality check for how fragile the legitimacy of elections really is. This is something that paper ballot advocates have been beating the drum on for decades, even before Bush v Gore.
1/
In much of the world, elections are carried out by voters hand-marking paper ballots that they place in ballot boxes whose chain of custody and tallying are observed by representatives from political parties. This works in rural, urban, dense and remote places.
2/
The US, however, has a bizarre love-affair with glitchy and poorly secured voting machines, despite the fact a) we shouldn't use voting machines AT ALL, and b) we REALLY shouldn't use THESE voting machines.