See:
‘A new button that closes the browser - #3 by Mattches’
How do I manually submit crash reports?
NOTE: In a Brave Browser New Window, go to: brave://settings/privacy and ENABLE Automatically send diagnostic reports
READ the guidance:
https://support.brave.com/hc/en-us/articles/22281484910221-How-do-I-manually-submit-crash-reports
After you click the “Send Now” button, return to brave://crashes and gather up the Crash Report ID numbers that end with a string of zeros. Post the numbers, here, in a new reply. Example of a Crash Report ID number:
