It works great, even with the Multi-Account Container Add-on.
With this Add-on, I can remain signed-in for certain container, while removing all other cookies and data I get spammed with.

Love this extension, great for personal and work use cases. For the love of god, can we have it on android already!

Endlich wird man die lästigen Dinger los!

Danke das es euch gibt

It seems to work perfectly. Add all cookies you want to keep to the white list and then activate automatic cleaning.