zlibrary is back, which is the best https://gonzoknows.com/posts/zlibrary-is-back/
Homework help for studying https://www.chegg.com/
There are already people trying to prevent ChatGPT through tools such as GPTZero, and as seen from this researcher. People have already bypassed these tools with fair ease.
Bypassing GPT-Zero’s ChatGPT Detection Program https://gonzoknows.com/posts/Bypass-GPTZero/
Brave search provides an .onion instance, so I would say no
Syphon Chat https://github.com/syphon-org/syphon/releases/tag/0.2.14