@matzesingt Apex has very unfortunately neglected the lore since season five, where as then we had a pve weekly mission going into the "Shadow realm" to retrieve artifacts and have interactions between the legends. It ended up being us rebuilding ash' head that was launched into the other dimension.
Since then we've been getting less and less. The weekly missions now have absolutely nothing happening, the new legends aren't the stars of their own season, and the most lore we get is in the trailers.
Respawn has a lore archive now on the apex site but that's something that should've happened a long time ago. And I think there missing a few things that are key lore details.
For anything substantial if you haven't been around since week one, haven't gone through the archive or don't the pathfinders quest lore book is to enjoy fan made stuff.
I've made a hundred and one season concepts and it has far and beyond more story and lore than what respawn and ea have put out. Help yourself.
https://answers.ea.com/t5/Creators-Corner/D-K-s-legends/m-p/9975794#M5742