[BUG] Nextcloud client freezes the panel for a long time at startup

[varac]

Describe the bug

When I start nextcloud client it freezes the panel immediatly and it takes a very long time until the icon shows up in the panel, then it is responsive again

To Reproduce

Steps to reproduce the behavior:

1. Install nextcloud client (3.6.2-1) on Arch Linux.
2. Remove existing .config/Nextcloud folder
3. Start with nextcloud --logfile /tmp/nextcloud.log --logdebug
4. Panel freezes
5. Wait apporx. 3 minutes
6. Icon shows up in panel, and the initial NC window appears

Expected behavior

The icon should show up in the panel shortly after start, and the initial window should appear quickly.
The panel should not freeze at any moment.

Desktop (please complete the following information):

• Linux distribution: Arch Linux
• Sway version 1.7
• Panel version 0.7.13

Additional context

The log shows messages like System tray is not available, waiting... : nextcloud.log

[varac]

https://forum.archlabslinux.com/t/nwg-shell-for-sway/5614/221:

Only Nextcloud client to go as a PITA 😉 It works, but usually only shows up after 2 minutes waiting 😂 🤣 Electron app, always issues with that one on Wayland. Also in Fedora KDE at the time.

[nwg-piotr]

I assume it's a Qt app, is it? I'll take a look when I have some free time. Sorry, but I'm working on several things at the same time.

[varac]

Yes, it's QT. Thanks for looking into it, and don't worry, I see you've a lot on your plate.

Just adding some (maybe?) related issues:

• Sync status icons not shown in Linux distributions