God of War Ragnarok's secret ending explained - How to unlock, details, and more?

sportskeeda.com:

That’s right, God of War Ragnarok has a secret ending! Once you overcome Odin, say farewell to Atreus, and begin the slow walk down to Midgard, there is some additional content. Thankfully, it’s very easy to find and complete the hidden ending. After you learn that there is more to do in the Nine Realms, you’ll be in a story called Beyond Ragnarok.

Freya and Mimir will insist that Kratos has unfinished business in God of War Ragnarok, such as dealing with the threat of Gna. Thankfully, Kratos will not have to fight through the Berserker Souls, the Muspelheim Trials, or anything like that to get the secret ending. But what’s the key to finding this ending?

Being a good person and saying farewell to a friend. After all, Brok was a beloved friend and a memorable character. It's only fitting for Kratos to bid adieu and give Brok a proper Viking funeral. His funeral is your secret ending.

Note: Contains major spoilers for the end and post-game of God of War Ragnarok

After coming down from the mountain where you left the rest of the characters you did battle alongside in God of War Ragnarok, you can move on with your life. However, stop by the nearby Dwarven Forge, where Lunda awaits. I imagine you can do this at any forge, but there’s one a small trek away.

Lunda will inform Kratos that there will be a funeral for Brok in Svartalfheim soon. This will unlock A Viking Funeral as a Favour. Kratos confirms he will attend, and then it is left at that. To kick this off, head back to the tavern in Nidavellir.

Several familiar faces will wait, each with a funny story about Brok. It’s a very somber moment, but since it concerns Brok, it’s also still quite comical. Durlin, Lunda, and Raeb will have something to say.

Interact with Brok’s