The Texas primaries showed the risk of restricting mail-in voting - Vox

…The statewide rejection rate for mail-in ballots has typically been between 1 and 2 percent in past elections and was about 1 percent in the 2020 general election when mail-in voting rates were much higher. But in the 2022 primaries, county-level rejection rates ranged from 6 to 22 percent, according to data compiled by the Texas Civil Rights Project and shared with Vox...

https://www.vox.com/policy-and-politics/2022/3/16/22967734/texas-voting-law-mail-ballot