Android smartphones are notorious in having low-quality Vulkan drivers full of bugs and spec violations... (I'm looking at you Qualcomm!)

A data point: SDL3-GPU maintainers announced that they will not give a shit about Android support, since there's just too many devices that haven't properly implemented the Vulkan spec. (https://github.com/libsdl-org/SDL/issues/12652#issuecomment-...)

Another data point: the current maintainer of the renderer portion of the Godot engine suffering through all the bug reports from Android devices (https://github.com/godotengine/godot/issues?q=is%3Aissue%20s...)

Ironically, the Vulkan discord always complains about the bad support of Vulkan on mobile devices, and how OpenGL ES is still better supported.