Bit depth and chroma are only two parts of the stream
“10-bit 4:2:2” is useful shorthand for color precision and chroma sampling, but it does not tell you whether the stream is HEVC, H.264, ProRes, XAVC or another codec. The decoder must support the whole combination.
Why ClipCompat uses Conditional
Blackmagic documents H.265 on Windows in terms of OS-supported 8/10-bit profiles and explicitly notes broader profile/GPU support in Studio. A static checker cannot know every installed media component, GPU driver or hardware decoder, so a cautious environment-dependent verdict is more accurate than a universal green check.
Compatibility and performance are different questions
A file can be supported but still be unpleasant to edit at high resolution or frame rate. ClipCompat focuses on media compatibility evidence; it does not benchmark your GPU or promise timeline performance.