Does anyone know how to enable vkBasalt?

I've tried entering the environment variables (ENABLE_VKBASALT=1) as I would on steam but none of the games open, heroic log doesn't log any errors. Have tried with vkbasalt on flatpak and rpm.
OS: Fedora 38
Heroic: 2.9.2
vkBasalt: 0.3.2.10
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