I strongly recommend you guys get this via Xbox game pass.
So far I have found this service the best one available. Just when you think PC titles are worth it, you only have to jump on your xbox to see the library open up even further.
Halo MCC
Outer World
Gear/4/5
etc
Reach has horrid fps when unlocked as mentioned already in the article (good job mark!), but my god these games are just amazing. First person shooter in their simplicity and yet so good.
I need to look at the FoV myself, i did not notice the same limitations you had, but perhaps that is something skewed from the start for me since I use a widescreen at 3440 x 1440