Wayland and audio is fixed, but only on the canary branch for the moment, this isnt lazy either, they changed the whole screenshare flow to suit linux's permission prompts
this post was submitted on 26 Nov 2024
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Screen sharing infrastructure (for Wayland) in Linux was still in development recently. Maybe they just wanted to be able to use newer APIs?
The screen casting portal is 6 years old. 6 years is not recent...
Just being supported as a protocol doesn't mean everything is done. Chromium probably didn't have it until years after that, and operating systems may not have implemented it umtil more recently.
Chromium had it for qhite a while, but it isn't really relevant... Discord's implementation of screen sharing was custom on X11, if they had used the one that comes with Electron, this would've worked far earlier.
DEs that had a Wayland session (aka Gnome and Plasma) supported it very soon after the portal was made.
The real reason won't be anything external, but something in the company. Usually it's just that Linux isn't a priority for a given company, so even if there's a motivated engineer that wants to take care of it, it's hard justifying to their managers why they need to spend a lot of time on it.
This isn't exclusive to Discord, to use a very similar example, Zoom is kinda worse. In the past, Zoom misused a Gnome screenshot API to do screen casting very badly, and recently they ported to the desktop portal - not because they had a choice, but because Gnome locked down the API they were using. Screen casting still only works on Gnome though, because they still check for the desktop name. If you set it to Gnome, it works perfectly fine everywhere else too!
All it would take to fix that problem is removing an if statement, yet, despite many complaints, it hasn't happened... because no big customer has complained, so it's just one of the unimportant Linux bugs.
Thanks for the additional info.