In the previous discussion everyone seems happy it’s been patched and not to worry (even though androids mostly don’t run anything like the latest android)

But in this write up they say the patch doesn’t work fully

The bigger issue is the sidechannel that exists which leaks information from secure windows, even from protected buffers, potentially including DRM protected content.

While these blurs make the sidechannel easier to use as it provides a clear signal, considering you can predict the exact contents of the screen I feel like you could get away with just a mask.