There’s plenty of articles out there explaining what the changes are (https://blog.chromium.org/2020/02/samesite-cookie-changes-in-february.html), why they’ve been done (https://www.troyhunt.com/promiscuous-cookies-and-their-impending-death-via-the-samesite-policy) and how to ‘theoretically’ fix them with simple code examples, but we haven’t stumbled upon many articles explaining ‘practical’ solutions to apply to a Drupal site to actually fix the issues that arise due to the stricter cookie policies implemented since the Chrome 80 release.
The 6th incarnation of Elmer's blog