The version automatically reverts to version 1.111.1 when I start a game, so... And it's in this version that I'm experiencing the bug. I'm going to try your thing for the openrouter.
Version 1.7.2 adds Gemma 4 12B to the model lineup. It doesn't use the backend's --fit feature, which might be the problem here, if your detected/confirmed VRAM amount is 16+ GB. Hope that fixes it.