Screen sharing fails in Raspberry Pi OS

[probonopd]

Describe the bug
Screen sharing fails in Raspberry Pi OS.

To reproduce
Flash Raspberry Pi OS and run it without any changes on Raspberry Pi 5.
Then try screen sharing using one of the two factory-provided web browsers, e.g., using https://meet.jit.si/.

Expected behaviour
Screen sharing works.

Actual behaviour

• In Firefox only sharing the full screen works, but you cannot share individual windows.
• In Chromium, you can only share Chromium tabs but neither individual windows nor the whole screen

Here is the full experience on a factory fresh Raspberry Pi OS image:
https://www.youtube.com/watch?v=6gDzZbImFJY

I suspect these issues are caused by Wayland, which is the default session on Raspberry Pi OS, and is known for breaking screen sharing.

System
Copy and paste the results of the raspinfo command in to this section. Alternatively, copy and paste a pastebin link, or add answers to the following questions:

• Which model of Raspberry Pi? Raspberry Pi 5 4GB RAM
• Which OS and version (cat /etc/rpi-issue)? Raspberry Pi reference 2023-10-10 Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 962bf483c8f326405794827cce8c0313fd5880a8, stage4
• Which firmware version (vcgencmd version)? 2023/10/18 18:30:17
• Which kernel version (uname -a)? Linux raspberrypi 6.1.0-rpi4-rpi-2712 raspberrypi/userland#1 SMP PREEMPT Debian 1:6.1.54-1+rpt2 (2023-10-05) aarch64 GNU/Linux

[probonopd]

If this is the wrong bugtracker: Where is the bugtracker for Raspberry Pi OS? Didn't find the GitHub project in which Raspberry Pi OS is built. Any hints appreciated. Thanks!

[popcornmix]

I've transferred this issue to bookworm-feedback.

[probonopd]

Thanks @popcornmix.

I had looked for a project named "raspberry-pi-os" or similar. Maybe renaming "bookworm-feedback" would help others, too?

[theofficialgman]

see upstream issue regarding window sharing not being available in wlroots derived compositors (such as wayfire)
-> emersion/xdg-desktop-portal-wlr#107
-> https://gitlab.freedesktop.org/wlroots/wlr-protocols/-/issues/93