Before the 2020 election Democrat and Republican electors made it easier for mail-in voting because of the pandemic. There's nothing lawful about that it's just a practical matter. After the 2020 election Republicans overall have been passing legislation about voting rights laws that are restricting voting rights, that is not helping the situation.
Several states bypassed its legislatures to enact election law changes. That is unconstitutional.
Your claim about voting rights law is right out of democrat talking points. It is law making it harder to cheat.