Revert Facebook to the Old Layout (pre-Sep 2020) by changing your browser’s user-agent string to one not supported by the new layout

Forced into the new Facebook layout? Don't like it?
This simple extension reverts your layout to the old version, before the September 2020 update.

Download, Go to this path 

C:\Users\{user}\AppData\Local\Google\Chrome\User Data\Default\Extensions

and extract the file there