Proxy in brave browser

Any help about configure a proxy in brave browser? I try it and recieved this message:

When running Brave in a supported desktop environment, the system proxy settings are used. However, either the system is not supported, or there was a problem launching the system setup. You can still set the configuration using the command line. See man brave for more information on tags and environment variables.

I'm using MX Linux 21.

Thanks.