My wife and I voted today. In Alabama, there is no such thing as "early voting". There is absentee voting and in-person election day voting at your assigned voting precinct. This year COVID-19 is a valid reason for absentee voting, but my wife and I decided to vote in person as we wanted to insure our votes are counted. The way it works here is that you present photo ID, get checked against the voter rolls, sign on an electronic screen, and get your ballot. The ballot is a "fill in the bubble" type and the voter feeds it, once completed, into one of the ballot counting machines. The machine accepts the ballot or will reject it if there is an issue. A spoiled ballot can be replaced if the machine rejects it. That way the voter knows when he or she leaves if the ballot was recorded and counted. The paper ballot is backup should there be a glitch or issue with the scanned ballot.
Absentee ballots may not be counted unless a race is close enough that absentee ballots can change the outcome.
The line was about the same as or maybe a bit more than it is for any general election with POTUS up for grabs. From the time we left the house to the time we left the voting precinct was about an hour.