His penalty isn’t clear yet, which seems strange ...
https://www.cnn.com/2023/10/20/politics/kenneth-chesebro-georgia-election-subversion/index.html
Huh? The article you linked includes this:
Chesebro pleaded guilty to one felony – conspiracy to commit filing false documents. Fulton County prosecutors recommended that he serve 5 years of probation and pay $5,000 in restitution, and Fulton County Superior Court Judge Scott McAfee imposed that sentence at Friday’s hearing.So, the penalty is very clear. A $5,000 fine. Five years probation. And a Felony conviction in the State of Georgia.
Here's a bit more about what that means in Georgia. A convicted felon loses the following rights:
Of course losing the case, getting convicted of multiple felonies, and THEN going to jail for a while would be a lot worse. And he is avoiding that.