Nevada allows mail ballots postmarked by election day to be received thru the following Sat, so tomorrow. Since they don't have a realistic number on how many that will be statewide, they can't approach a final count until after tomorrow.i.e. "I couldn't find any link that Republicans for Nevada".
Instead of posting an ignorant comment, you might have done the research yourself. As in many states, many of these voting absentee initiatives were originally put in place by the GOP, but they suddenly reviled them when the Dems decided to go all in on employing them in 2020.