Well, that information is good to know!
Did you try clearing cache/history on your main profile?
Also, is hardware acceleration in brave://settings/system disabled after the reset? This was just posted recently and I wonder if your graphics driver could be contributing to the problem and I’m wondering if there is some flag in brave://flags that can help.
A DM to the moderators is a good idea at this point. You can also tag them in your post. Hopefully, a moderator (or even a community member) can solve your issue. I’ve given as much help as I can! Hope your problem is resolved soon.