Just checked. It seems you can early vote if you requested a ballot...
they cancel the ballot and issue a new one...but you should early vote if you are not using your mail in ballot...different if you vote on election day. Based on this article, you do not need your ballot when you early vote.
"If you do have a burning desire to vote in-person, I would suggest that you come down [to the BOE] for early voting, where we can simply cancel the ballot we sent you, and issue a regular ballot," said West. Going to your local BOE is the simplest way if you change your mind, because if you go to a polling location on election day, your name will be flagged. You would then have to cast a provisional ballot, which are ballots that are set aside because of questions and are counted after issues are resolved."
https://www.wkyc.com/article/news/politics/elections/ohio-early-voting-absentee-ballots/95-33a860e1-c79a-4518-b180-5ff91efc8440