Even better, OBS now supports directly logging into Twitch, which then also gives you windows to set stream description and see user chat, all within OBS.
Correct, our service integrations are reliant on CEF and the browser source features. Our Flatpak is an option if your distro's repo doesn't have it compiled for some reason.
EDIT: Looks like it's in the source for a long time but my distro doesn't compile OBS with the built-in browser, which I'm guessing is a requirement