I've been taking notes on collectibles in Astral Chain (work still in progress), so if there's interest in seeing where the harder to find items are (the ones that require the Arrow and Beast legion, respectively) and how many items there are per sub-chapter, I can make the effort to post it all eventually. Sub-chapters refers to the way the game splits up the chapters in Chapter Select where each chapter has between two and nine segments.
I am also doing redshift (?) percentages per sub-chapter, so going for 100% is a bit easier with checkpoints; although a margin of error exists because there are no decimal percentages and there are usually hundreds of redshift icons to remove in each chapter. An example of this is chapter 5 where the segment with the subway entrance features redshift, but not enough to push it to 1%; not an issue in this segment because all redshift is on the main path in plain sight and basically impossible to miss.
Lastly, I am also taking notes on all of the achievement collectibles like cats, toilets, rare slimes and special photos.