This has the disadvantage when following a link from a different domain name (such as from a search engine to whonix.org or from kicksecure.com to whonix.org) that the user appears to be logged out. Even in case the user is already logged in. When going to the URL bar and pressing enter, the user will appear logged-in. (Of course only if the user was previously logged in.)
This is not a bug. This is to be expected when setting cookies to SameSite=Strict as per browser defaults.
While not a bug, this can certainly be confusing. Other SameSite settings could be investigated.