Q: Brave don't start I have a ubuntu 20.04.4 LTS, and after upgrade Ubuntu Brave browser don't open anymore.
brave-browser-stable                 
[237239:237239:0318/160044.264043:ERROR:sandbox_linux.cc(377)] InitializeSandbox() called with multiple threads in process gpu-process.

I did remove the folder ~/.config/BraveSoftware, uninstall/reinstall apt remove --purge brave-browser and apt remove --purge brave-browser and dosen't worked.
I tryied with brave-browser-stable --disable-gpu and brave-browser --disable-gpu --disable-software-rasterizer but same error
I was googled but nothing worked.
