[kde] [Bug 505133] New: Resizing electron-based window in KDE Plasma from left or top often makes the window unresponsive for 8-10 seconds

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=505133

            Bug ID: 505133
           Summary: Resizing electron-based window in KDE Plasma from left
                    or top often makes the window unresponsive for 8-10
                    seconds
    Classification: I don't know
           Product: kde
      Version First unspecified
       Reported In:
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: 9.9994k at aleeas.com
  Target Milestone: ---

Created attachment 181969
  --> https://bugs.kde.org/attachment.cgi?id=181969&action=edit
Screen recording showing the issue

SUMMARY
When I resize an Electron-based application's window (e.g. Discord, Obsidian or
VSCodium) from the top, left or top-left corner, the application often becomes
unresponsive for ~9 seconds. Resizing from the bottom, right or bottom-right
corner does not trigger the freeze. During the freeze, I cannot resize or click
within the application, but I can still move the window.

The more time spent resizing, the higher the likelihood of the
freeze/unresponsiveness triggering. The distance resized does not seem to
matter, it's more about the time spent resizing.

Sometimes it freezes nearly every time I resize; other times, it only happens
every 10th to 20th attempt. When exactly it will happen seems inconsistent and
nondeterministic to me. Most commonly, it happens every 2-4 times that I resize
an electron window from the top or left side.

STEPS TO REPRODUCE
1. Open an Electron based app (e.g., Discord or Obsidian)
2. Resize the window from the top, left, or top-left corner, for a few seconds.
3. The application will be unresponsive for ~9 seconds.

OBSERVED RESULT
The window becomes unresponsive (frozen) for 8-10 seconds.

EXPECTED RESULT
The window should resize without freezing or becoming unresponsive.

SOFTWARE/OS VERSIONS
(available in the Info Center app, or by running `kinfo` in a terminal window)
Operating System: Arch Linux 
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.0

ADDITIONAL INFORMATION
Kernel Version: 6.14.9-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 32 × AMD Ryzen 9 9950X 16-Core Processor
Memory: 60.5 GiB of RAM
Graphics Processor 1: NVIDIA GeForce RTX 2070/PCIe/SSE2
Graphics Processor 2: NVIDIA GeForce RTX 2070/PCIe/SSE2

WM: KWin (Wayland)
WM Theme: Breeze
Theme: Breeze (Dark) [Qt], Breeze-Dark [GTK2], Breeze [GTK3]

100% scaling.

$ pacman -Q | grep -i nvidia
lib32-nvidia-utils 570.153.02-1
nvidia-dkms 570.153.02-1
nvidia-utils 570.153.02-1
opencl-nvidia 570.153.02-1

I have a 144Hz monitor - it also happens when changed to 60Hz.
I tried launching Obsidian with --disable-gpu, this did not make a difference.
I tried running Obsidian with `WAYLAND_DEBUG=1`, however no messages show up in
stdout or in journalctl when the freeze/unresponsiveness happens.

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