I cannot update Brave browser

I am running MacOS Monterey 12.7.6. I cannot update my OS because I have a 2015 macbook pro and Monterey is it for me unless I get a new mac.

I tried downloading a new version of Brave but could not do that.

I have tabs and bookmarks which I need to keep.

I have checked the forum, but cannot find any relevant answers. Help would be much appreciated.

Thank you