As user PhoenixAlpha mentioned on the official ShaderLabs Discord, now Vanillaccurate has a 64x version it’s time to release an upscaled Vanilla pack with the same resolution as well, so PTGI users might get correct reflections on the missing blocks when using Vanillaccurate !
Download the new 64x upscaled pack here.
Alternatively it’s also available on the Upscaled Vanilla Packs page.