States are gradually displacing the Electoral College by declaring how their representatives may vote (winner take all or proportional - more are going to proportional).

Queueing to vote for hours in your country is time-honoured, especially in areas where there are lots of poor voters or black voters, the people who would most likely overwhelmingly vote democrat. That seems like a pretty deliberate ploy. "Covid" has nothing to do with it.

SARS-Cov-2 has a great deal to do with the delays now, and the GOP representatives who have reduced the number of poling places and who are trying to cheat to win have made it a lot worse. What is needed is a new version of the Voting Rights Act that was cancelled in the Bush administration, allowing all of the nonsense that is happening now. A new act would again allow federal oversight and stop the state party folks meddling.