For external scripts to work on top of the intercepted logs you can enable savings logs to a local file.
Navigate to settings from the icon on the top right and under Desktop Settings there is a section for Session Log Storage
Note: The logs do get cleared whenever app restarts
This is done to avoid the log file from getting unnecessarily large which has shown to cause performance issues
The mentions the path of the file where the log is stored.
This is a .jsonl file where each line is an intercepted request stored as a har with one entry.
The request is added to the file only if the url matches any of the substrings that you add as matching strings