Steam overlay doesn't work properly

Hello, when I run steam the overlay doesn’t work properly. The text is shown by filled bars and the windows are flickering. The games itself runs fine. Does anyone have an idea?

neofetch:

OS: Manjaro Linux x86_64
Host: MS-7C84 1.0
Kernel: 5.15.2-2-MANJARO
Uptime: 4 hours, 57 mins
Packages: 1475 (pacman)
Shell: bash 5.1.8
Resolution: 1920x1080
DE: Plasma 5.23.3
WM: KWin
WM Theme: Oxygen
Theme: Breeze-Noir-Dark-1 [Plasma], Breeze [GTK2/3]
Icons: Breeze KDE-Story-Dark [Plasma], Breeze KDE-Story-Dark [GTK2/3]
Terminal: yakuake
CPU: AMD Ryzen 7 5800X (16) @ 3.800GHz
GPU: AMD ATI Radeon RX 6600/6600 XT/6600M
Memory: 6137MiB / 32090MiB
<\code>

inxi:

CPU: 8-Core AMD Ryzen 7 5800X (-MT MCP-) speed/min/max: 3203/2200/3800 MHz Kernel: 5.15.2-2-MANJARO x86_64 Up: 4h 53m
Mem: 6577.7/32090.1 MiB (20.5%) Storage: 3.64 TiB (11.0% used) Procs: 426 Shell: Zsh inxi: 3.3.08
<\code>

inxi -G:

Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Navi 23 [Radeon RX 6600/6600 XT/6600M] driver: amdgpu v: kernel
Display: x11 server: X.Org 1.21.1.1 driver: loaded: amdgpu,ati unloaded: modesetting,radeon
resolution: 1920x1080~60Hz
OpenGL: renderer: AMD Radeon RX 6600 XT (DIMGREY_CAVEFISH DRM 3.42.0 5.15.2-2-MANJARO LLVM 13.0.0) v: 4.6 Mesa 21.2.5
<\code>

Rest will follow.

:thinking:

What’s the output of:

mhwd --listinstalled

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