Describe the bug
on https://oauthlib.readthedocs.io/en/latest/oauth_1_versus_oauth_2.html

the entry for
Your clients reside in user controlled devices with the ability to authorize through a web based workflow. This workflow is inherently insecure, restrict the privileges associated with tokens accordingly.
suggests to use Implicit Grant, but Implicit Grant is now considered to be unacceptably insecure and is being depreciated in favor of Authorization Code with PKCE

How to reproduce

Go to the page, read the section, compare to the official documentation linked below

Expected behavior

the document should match the official recommendation

Additional context
https://oauth.net/2/grant-types/implicit/ (includes several further reading links at the bottom)
https://oauth.com/playground/index.html (choose implicit flow and read the content of step 2)