The laws are exactly the same in 2024 as they were in 2020.
It was easier to vote in 2020 than it was in 2016 (due to the illegal changing of the rules) but it wasn’t easier than it is in 2024. We’re not comparing 2020 to 2016. We are comparing 2020 to 2024.
There was a huge ground game in 2020 for mail-in voting. That was not the case this year. It was, in fact, easier to vote in 2020 than this year. Also, Trump finally smartened up and told his base to vote early; something he actively told them not to do in 2020. Was 2020 rigged? Yes. Was 2020 fraudulent to the point of costing Trump the election? No.