I have pff edge and will share the statistics.
Browns :

Left Tackle: Desmond Harrison, 40.4
Left Guard: Joel Bitonio, 74.4
Center: JC Tretter, 71.4
Right Guard: Kevin Zeitler, 72.3
Right Tackle: Chris Hubbard, 66.4

After the much anticipated left tackle reveal, rookie undrafted free agent Desmond Harrison played about as well as you’d expect a rookie UDFA left tackle to play starting Week 1. Only three offensive linemen had a lower overall grade than Harrison’s 40.4 this past week. Truthfully though, there were a lot of promising plays on tape and much of his grade was the result of committing three penalties.

Bengals

Left Tackle: Cordy Glenn, 69.4
Left Guard: Clint Boling, 71.6
Center: Billy Price, 58.1
Right Guard: Alex Redmond, 53.6
Right Tackle: Bobby Hart, 40.2

The Bengals could likely be better than this ranking, but not with Hart starting at right tackle. He allowed two sacks and three other hurries to finish with a 40.4 pass-blocking grade on the day.