This is a longshot suggestion.
When we used TW, we occasionally had issues with our Chrome-based browsers, Brave being one of them.
There is a sub-directory named “GPUCache” that can be easily removed , which always fixed the oddity issues. It is simply a “cache” sub-dir, so doesn’t matter if cleared out.
(I have numerous bookmarks to those old posts for reference).
Anyway, simply run this command to find them - run it when logged in as your regular user account from its home sub-directory .
username@machine :~> find ~/ -type d -name GPUCache
That will list all applications that are using a GPUCache sub-dir. Then move to that sub-dir of the app in question and delete its content.
.
One post as a reference: