The Browns have more talent than the Bengals but that doesn't always translate into a win. With only 3 days of preparation, I don't feel very confident that the Browns can get their team back on track so fast and there will be a transition phase with a new head coach. Now for the Bengals, Joe Burrow had a decent opening game. With the help of Joe Mixon who has torched the Browns in the past that definitely helps the Bengals chances.
I think the TD spread is more of the Browns potential than what they actually do on a week to week basis. I like the Bengals a lot to cover the spread in this game and wouldn't be surprised for a late Joe Burrow game-winning drive.