>>107831735
Oh fuckin hallelujah I figured it out.
>launch the url version
>right-click titlebar of the url version
>More Actions > Configure Special Window Settings
>Look at what Window class (application) reads; in this case brave brave-discord.com__app-Default
>go back to my .desktop and add StartupWMClass=brave-discord.com__app-Default
Suck my dick Chromium, I AM YOUR MASTER.