[Intel Iris Xe, Mesa 24.0.9] Minecraft + Zink stuck on LWJGL initialization

[Flopster101]

Tried a few MC versions from 1.13.2 to 1.20.1, and all of them get starting stuck with a message like this on the log:

[22:16:13] [Render thread/INFO]: Backend library: LWJGL version 3.3.3-snapshot

Minecraft 1.12.2 starts with a white screen like on #99 and requires forcing Java 17, as Java 8 and 11 don't work due to #129.

What can be done to diagnose this? GLonD3D12 and llvmpipe work fine.