MCC HALO GAME: Halo: Reach
The graphical issues from the Digital Foundry video ( https://www.youtube.com/watch?v=c5kCLcu8hdk , article: https://www.eurogamer.net/articles/digitalfoundry-2019-halo-reach-master-chief-collection-analysis , the video illustrates the issues better though ) have still not been mentioned in the last development update, from which I'm assuming that they aren't being worked on.
These issues (again: they're explained better in the video; I'll explain a small portion of it here in case you're not watching the video) are e.g. Bloom (the graphical effect, not the weapon mechanic) and Ambient Occlusion behaving very differently (or incorrectly) than they did in the Xbox 360 version, they seem to be downscaled substantially in comparison to the original version to the point were they're hardly visible.
I have contacted support about this (about 2 months ago), who said that they passed it on (whatever that means) and also told me to write a post about this on this thread, which I have done. But, again, these issues are not mentioned in the latest development update, so I'd like to know if they are actually in some way being worked on. A player just has to know if he actually has to wait for such a major fix, or not. So, please, you have to at least communicate this!