Under My Games, completed games show up with a 'Green' highight/visual cue to indicate that they have been completed. For games with Unobtainable achievements, there is nothing visually to denote that there is no progress left to complete, which makes it difficult to note whether or not the game has been "finished" with the max possible achievements.
I would like to propose that a highlight/visual cue be added for these titles, to make it easier to identify games which have no achievements left to obtain. The color for this does not matter, but should be distinct from completed games.
Example:
https://snag.gy/MWbmvG.jpgWordament here is correctly highlighted to show that it has been completed.
Vampire Rush here is not highlighted, but it has been completed with the max possible completion %. Going through my list in My Games, it is difficult to know if I had 1 achievement left, or none left, in comparison to the other games listed.
Note: While My Game Collection can be used in conjunction with the "Done With" status, this is strictly in relation to My Games and its functionality, which I prefer because it does not require me to manually curate my collection and manually set a "Done With" flag, which does not necessarily correlate with whether or not I've reached max possible completion % on a title.