Mesa 24.2 causing graphic problems in Plasma 6 on X11 in VirtualBox

System information

Please post inxi -GSC -xx

output inxi from VB (affected) https://dpaste.org/YKasx

output inxi from real hardware (not affected): https://dpaste.org/kh07m

Info from VB:

OS: OpenMandriva Lx 24.90 (Nickel) Cooker
GPU: 00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
Kernel version: 6.10.6
Mesa version: error: couldn't find RGB GLX visual or fbconfig
Xserver version: X.Org X Server 1.21.1.13
Desktop manager and compositor: Plasma 6.1.4, kwin x11

Info from live on real hardware:

OS: OpenMandriva Lx 24.90 (Nickel) Cooker
GPU: 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] [1002:67df] (rev e7)
Kernel version: 6.10.6
Mesa version: OpenGL version string: 4.6 (Compatibility Profile) Mesa 24.2.1
Xserver version: X.Org X Server 1.21.1.13
Desktop manager and compositor: Plasma 6.1.4, kwin x11

Describe the issue

I would like to report a problem that appeared with mesa 24.2 rc and is also present in stable 24.2.1. Last good was 24.1.X.

After starting Plasma 6 in an x11 session in VirtualBox, graphical problems appear, such as no window shadows or no smooth animation - when moving the window everything tearing also lack of transparency. The problem does not occur when using such a system on real hardware or on something like qemu like gnome-boxes. Only VirtualBox appears. Tested all VirtualBox options like VBoxVGA, VMSVGA and VboxSVGA and also with enabled 3D acceleration and without - problem exist on all.

The problem is also not present in the Wayland session.

Currently I have tested two distributions:

OpenMandriva x11 - the problem appears on VB.
OpenMandriva Wayland - there is no problem on VB.
Fedora Rawhide Wayland - there is no problem on VB.
Fedora Rawhide after installing x11 session - the problem appears on VB.

The problem was noticed not only by me, but also by several other people I have contact with (mandriva users).

I understand that the problem may depend on Plasma 6, but it was clearly caused by a Mesa update, the previous branch 24.1.7 works without any problems.