MangoHud causes games to crash or not launch

I recently installed bazzite and so far loving it, but it seems I broke something. I am using latest Heroic and mangohud flatpaks (I have both 23.08 and 25.08 branches installed).
When mangohud is enabled in game settings, it causes any game to crash with the following (in Heroic, it shows the error, in Steam, it simply closes the game on launch):

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Wine C++ Runtime Library
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Assertion failed!
Program: S:\Games\Baldur's Gate 3\bin\bg3_dx11.exe
File: ../src-wine/dlls/winevulkan/loader.c Line: 420 Expression: "!status"

Running without mangohud works totally fine.
I first thought it was just BG3 but it's mangohud, or rather, I probably broke something, as vulkaninfo throws out errors about khronos validation (attached).
I have installed lsfg-vk, however, it must be something other than that - uninstalling lsfg-vk doesn't fix this.
vulkaninfo5.28KB
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