Ask HN: Good Examples of User Manuals?

I've been reviewing some options to create a user manual and/or FAQ for a system we are delivering to customers.

I read some content from hubspot[1] and intercom[2] which gave some insights, but I would like more greate and preferrably real-world examples.

Of course the audience might have different requirements and expectations, but do you have any good examples of user manuals or FAQs which users(and also the writers) love?

[1] https://www.hubspot.com/knowledge-base [2] https://www.intercom.com/blog/give-your-customers-best-practices-not-just-faqs/