Files shared with Anyone sometimes prompt users to request acccess to the file

nickf23 these steps don't work in my personal OneDrive.

• "Return to classic OneDrive" isn't an option -- I see only "Premium OneDrive", "451GB used", and "Get the OneDrive apps".
• If I theorize that maybe I'm already in Classic and proceed to the settings gear, I don't see "Site settings", nor do I see "People and Groups" on any subsequent page.  My gear options are "Options", "Upgrade", and "English (United States)".

In my nonprofit org, I am able to follow the Sharepoint steps.  However there are two problems:

• You have a typo in the URLs.  Should be "_layouts" not "_layout".
• Upon reaching this page, I do not see the troublesome user account.  For example, given my recent experience of being asked to (re-)authenticate via personal identity, I'd expect to see email address removed for privacy reasons listed as an erroneous guest account here.  But it's not there.  Nor do I see the work/school accounts of end users who've complained in the past. 
  
  I do see my nonprofit identity (email address removed for privacy reasons) in the list, but I'm obviously not going to delete that -- I'm the only site admin!