You cant just force all other mods configs to be loaded early. There's a reason forge handles that internally

MehVahdJukaar/sleep_tight#58 (comment)

It would be awesome, if you could fix this bug soon. It is opened since January 22 with a solution provided by MehVahdJukaar. Thanks.

Seems like I am, maybe there's a way to only load my own early

https://github.com/MehVahdJukaar/Moonlight/blob/1.20/forge/src/main/java/net/mehvahdjukaar/moonlight/api/platform/configs/forge/ConfigSpecWrapper.java