I have similar issues like this.
Only on a Mac Book Pro
2,6 GHz 6-Core Intel Core i7
Intel UHD Graphics 630 1536 MB
Using Brave for years and suddenly since July this is happening.
I have to disable “Use graphics acceleration when available” otherwise the entire Brave UI flickers and goes crazy.
I just use Chrome to view Netflix/Disney+ See difference in fps 30 vs 60 on very same machine ?

