Looking at their benchmarks there doesn't appear to be meaningful difference between their quants and bartowsky quants.
No our Qwen3.5 new ones show the opposite see https://unsloth.ai/docs/models/qwen3.5/gguf-benchmarks
alt Hacker News
No our Qwen3.5 new ones show the opposite see https://unsloth.ai/docs/models/qwen3.5/gguf-benchmarks