Compatibility. Those features do not work on different mobile devices (depth maps on iOS for example). On top of that things like some Malis will return differe

Compatibility. Those features do not work on different mobile devices (depth maps on iOS for example). On top of that things like some Malis will return different levels of precision from what you ask for. The whole area of image and depth format support is a nightmare. You rightly point out that this causes the shadow maps to be the bane of my existence. Consequently my biggest hope for WebGPU is to be able to get rid of many of these device level inconsistencies and do things like reverse the z-buffer. Edit to add: the configuration of cascades is not optimal in the context of these games but I am using these as tests for potential future things which would need that number of cascades. At some point I decided I had to stop playing with shadow buffers and just release something!