Radeon Gaming/Graphics Performance: Windows 11 vs. Linux GPU Benchmarks
Strange Brigade running on Linux via Steam Play was showing some performance issues at 1080p and 1440p but at 4K tended to run similar to the Radeon Software driver on Windows.
Unigine Heaven is becoming quite old at this point but still remains a demanding OpenGL native benchmark that works well on both Windows and Linux. For Unigine Heaven the best performance was still seen under Windows 11 while the latest open-source Radeon Linux graphics performance isn't too far behind.