Turns out the video VAE in the initial distilled checkpoints has been wrong one all this time, which (of course) was the one I initially extracted. It has now been replaced with the correct one, which should provide much higher detail
Separated LTX2 checkpoint for alternative way to load the models in Comfy

LTX2 GGUFs that include the metadata also work with the setup, if your GGUF nodes are up to date.