It seems deliberately confusing to me since there is no fundamental difference between voting now and voting on the day of the deadline, but the way it’s discussed and referred to seems to imply that the correct day to vote would be waiting until the last minute instead of voting just getting it out of the way weeks ahead of time.
The only difference is to spread out the opportunity so everyone can vote. No vote is counted until Election Day, so this is no different than mailing in a vote early to make sure it gets in on time.