(Canary) Unable to start the screenshare on Linux

Summary

Hi, testing that new screenshare stuff in 433 build of fluxer canary it does not work under linux properly, i am unable to actually share the screen even tho the portal picker does appear with the new UI

Steps to reproduce

1. Grab Fluxer canary on linux via a wayland session like KDE Plasma
2. Try to screenshare
3. Can't start the screenshare

Environment (optional)

canary build 433 (612b513), 2026-04-23 14:06:44 UTC, Electron 40.0.0, Linux 7.0.0-1-cachyos (x64), desktop canary 0.0.24 KDE Plasma 6.6.4, CachyOS

Logs or screenshots (optional)

582754595-ccd0f966-db61-4645-b5c1-e7881062c3d5.mp4