SUMMARY
Minimizing/Restoring a Konsole window on X11 resets the window size to the initial size even though it shouldn't. In a previous version (whatever was before 2021.08.) this wasn't the case.

This doesn't happen if the option "Remember window size" is set, which I don't have as I like new windows to always have the same size.

STEPS TO REPRODUCE
1. Use Konsole on X11 with the "Remember window size" unchecked. Resize the window to a size different from the initial size set in the profile (in my case 80x24), e.g., 100x50.
2. Minimize the window (either via the task manager in the panel or the minimize button on the window).
3. Restore the window (via the task manager).

OBSERVED RESULT
The window gets restored and resizes to the default size. While doing that it shows the "Size: 80x25" resize notification.

EXPECTED RESULT
The window stays at the size it was before it was minimized. In this case 100x50.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Arch Linux
(available in About System)
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.85.0
Qt Version: 5.12.2

ADDITIONAL INFORMATION