Stalls at spellcheck download

[axlFThn]

• [ X] This is not a feature request (existing functionality does not work, not missing functionality).
  I will request features on forum or via support.
• [ X] I've searched and did not find a similar issue.

Describe the bug
AppImage desktop app stalls at spellcheck download

To Reproduce
Steps to reproduce the behavior:

1. Download AppImage
2. Run AppImage
3. See error

Expected behavior
Startup of application

Screenshots
user@host:~/Downloads$ ./tutanota-desktop-linux.AppImage
QSocketNotifier: Can only be used with threads started with QThread
the monkey has been patched pid: 203281
(node:203281) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
(Use tutanota-desktop --trace-deprecation ... to show where the warning was created)
Creating tables...
Current credentials version: 1
Tables created successfully!
version: 244.240913.1
MESA-INTEL: warning: Haswell Vulkan support is incomplete
resolving key... tutanota-vault
libva error: /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so init failed
[DesktopMain] getting dictionaries from: https://app.tuta.com/desktop/dictionaries/
config up to date
[DesktopMain] spellcheck-dictionary-download-begin en-US

Desktop (please complete the following information):

• OS: Ubuntu 24.04.1 LTS
• Desktop Environment, if applicable (on Linux): Gnome
• Version 46.0.1

Additional context
AppImage originally not working due to the current issue in AppArmor (Launchpad Bugs #2046844, #2064672 (SRU'd fix for Noble), and #2072811 (the regression bug that reverted it)). Could make AppImage starting with "sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0", but app stalled at the spellcheck download.