Paywalled article in main Finnish newspaper today. I will try to quickly summarize my takeaway. (Writing in a hurry, sorry if there is mistakes)
1) he was diagnosed with depression shortly after the death of hid father. But that wasn't the only cause, maybe not even main cause. His quality as a person and a human was for a long time seen through a lense of how he plays hockey.. a good game = good person, a bad game = bad person.
2) as the first athletic person in his family he was expected to generate not only wealth but generational wealth.
3) missed WHC in Latvia due to mental reasons, not physical injury, even though injury was claimed as the reason at the time.
4) now working to have other identities besides a hockey player (such as "dog owner")
5) he heard of his father's death because girlfriend of the time had phone on speaker mode. The message was along the lines that "... We can't tell Patrik yet".
6) for a long time he was going to sleep around 3-4am, waking up at 7. Video games were more of a symptom than a cause, the voice chat allowed him to talk to friends who he wasn't really equipped to call up and have a chat with otherwise.
There's quite a bit more and my rough points don't really do much justice to the article. I hope some English outlet will pick it up and do better translation.