[2021] Completion tracking in Immortals Fenyx Rising?

This game, unfortunately, never reveals goals on the map but instead requires you to pixel-hunt and tag things yourself.

I just got a warning from the game that when I enter the final battle there will be no post-game. Is there any way to track progress in the game? I have no way of knowing if I've managed to tag all the pixels for all the chests and vaults.

[No clue what genius decided you need two tags to post here, but doesn't allow you to actually find relevant ones.]