Hi there!
I'm running into the same issue as OP. I have had 0 issues with Apex the entire time I've owned it, (via Steam since April of this year), and now I can't get past the boxes that pop up detailing events and what not. This just started happening yesterday, and Steam will immediately close and gives me a similar error message. I have not made any hardware changes. I do regularly update drivers and have checked all recent windows updates, and nothing was updated yesterday prior to having the issue. I have tried what OP said about changing the page file size exactly as they did, and I've also tried having 0 page file size and other alternatives I've seen on this topic in the forums and Youtube/Reddit/etc. I tried to verify the files (no issues there), before doing anything else, cleared some space on my drives just in case, and even uninstalled and reinstalled the game. Nothing has helped. Outside of a clean boot which I've been hesitant to do, I swear I've tried everything under the sun. Screenshot of the error message and DxDiag report will be below. This screenshot was taken with the "system managed" size option in the advanced settings, but it's the same for every other option I've tried.
Any help is appreciated. Thank you! 🙂