Browser managed by your organisation, cannot remove policies

I DO NOT HAVE ANY EXTENSIONS
Hi, recently when using brave search bar and typing random words (the one on the top, it is the most convenient for me) i am redirected to bing browser. Now the deal is that I have a browser hijacker, called bimq.co (or browserpirate.com), because that redirects me to different sites, for example duck duck go (the virus does not always activate). Anyway, when i go to brave policies, this shows up:


By the way, these policies cannot be deleted. I tried resetting the brave settings to default, uninstall and install brave, but it did nothing. Also ran a couple of malwerybytes scans and they did not detect anything. Honestly this is annoying asf

Operating System and Brave Version(See the About Brave page in the main menu):

Version 1.73.89 Chromium: 131.0.6778.69 (Official Build) (64-bit)

Additional Information:
Please help you are my only hope left…