Visiting post asks user to login

Does the login request have a specific layout? Is this question in the website and is it a window that opens? A screenshot of it or even a link to the page would be interesting.

@threadi thank you for responding

https://prnt.sc/rVdw0zva-YIO
It redirects to the page

e.g. https://example.com/post-url redirects to login page

and the visibility is public not password protected or private.

Deactivate all plugins as a test. Then you should open the page in another browser or in a private window to avoid your own browser cache.