Do you use ‘CCleaner’ by any chance? Some searching turns up a suspicious confluence of users of that tool, and this issue.
Outside of that, here are some links that might help. YMMV.
https://support.google.com/chrome/thread/14579131
https://www.reddit.com/r/TronScript/comments/dsnsod/solution_to_incognito_mode_disappear_from_right/
If I were in your position, I would try the following:
- Remove the pinned browser icon on your Taskbar
- Disable the ‘Show recently opened items in Jump Lists…’ Windows setting
- Re-pin Brave to your Taskbar
- Re-enable the Jump Lists setting
- Use Brave for a day or so and see if the other ‘Tasks’ in the right-click menu come back