How to keep 1st and 3rd party cookies created by any host with-in a domain?

Question

How to keep all 1st and 3rd party cookies created by any host with-in a domain?
[i.e. when logging into accounts.google.com; Google creates cookies under:
accounts.google.com, google.com, mail.google.com, ogs.google.com, www.google.com, www.youtube.com, youtube.com]

I tried using:
Settings > Privacy, search and services > Clear browsing data on close > Cookies and other data > Don't clear > ADD:

But I have two problems with this:

1. there is a checkbox for 'Include third-party cookies on this site'.
   **** for some reason, if you click that checkbox, this domain exception only lasts 1 session ****
   i.e. it disappears upon restarting the browser.
2. how do you include all sub-domains in this exclusion?
   (the hint text is [*.]domain --- but doing '**.google.com' gives a warning message "CHECK URL")

Answer 1

Hi @Kevin York

For the first question, I can reproduce the issue. I think that's an issue with Edge. You can provide feedback by pressing Alt+Shift+I in Edge. Edge team will check the feedback and improve the product continuously. Thanks for your understanding.

For the second question, the right format should be [*.]example.com:

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