Drum roll, please...
As mentioned in this post, Microsoft's Xbox store page lists, among other things, whether a title features Variable Refresh Rate (VRR). Outside of physically testing all 1,873 Xbox One games, according to Wikipedia, this is the only definitive information I could come up with for support of this feature. For example, the image below is what Gears of War 4's Xbox store page lists under "Capabilities." And, though the Xbox One S also supports VRR, I am but a mere mortal, so I only list the feature for titles that are X Enhanced (which is in line with the thread's purpose, anyway).
So, without further ado, I have updated the following titles in the OP with their support for VRR. Also, remember all Xbox One and Xbox 360 titles without X enhancements get VRR.
Disneyland Adventures
As mentioned in this post, Microsoft's Xbox store page lists, among other things, whether a title features Variable Refresh Rate (VRR). Outside of physically testing all 1,873 Xbox One games, according to Wikipedia, this is the only definitive information I could come up with for support of this feature. For example, the image below is what Gears of War 4's Xbox store page lists under "Capabilities." And, though the Xbox One S also supports VRR, I am but a mere mortal, so I only list the feature for titles that are X Enhanced (which is in line with the thread's purpose, anyway).
So, without further ado, I have updated the following titles in the OP with their support for VRR. Also, remember all Xbox One and Xbox 360 titles without X enhancements get VRR.
Disneyland Adventures
2160p
HDR
VRR
EleaHDR
VRR
Quality Mode: 2160p Dyn, 30fps
Performance Mode: UNKNOWN Dyn, 60fps
"Better shadows, better AA, better anisotropic filtering, far better screen space reflections, and post-process profile", across both modes.
VRR
Forza Motorsport 7Performance Mode: UNKNOWN Dyn, 60fps
"Better shadows, better AA, better anisotropic filtering, far better screen space reflections, and post-process profile", across both modes.
VRR
2160p
HDR
VRR
Gears of War 4HDR
VRR
Visuals: 2160p, 30fps Campaign/Horde. 2160p Dyn, 60fps Versus
Performance: 1080p, 60fps Campaign/Horde
Enhanced god rays, dynamic shadowing, further draw distances, surface space reflections, and higher resolution textures.
HDR
VRR
Middle-earth: Shadow of WarPerformance: 1080p, 60fps Campaign/Horde
Enhanced god rays, dynamic shadowing, further draw distances, surface space reflections, and higher resolution textures.
HDR
VRR
Favor Quality: 1980p, 1890p-2160p Dyn
Improved textures and filtering, draw distance, shadows, lighting, AO, LoD, Dynamic Resolution option.
Favor Resolution: 2160p Dyn
Improved textures, Dynamic Resolution option.
HDR
VRR
Rush: A Disney Pixar AdventureImproved textures and filtering, draw distance, shadows, lighting, AO, LoD, Dynamic Resolution option.
Favor Resolution: 2160p Dyn
Improved textures, Dynamic Resolution option.
HDR
VRR
2160p
HDR
VRR
State of Decay 2HDR
VRR
2160p, 30fps w/dips
Increased texture resolution, shadow detail, foliage density, ambient occlusion, and higher draw distance.
HDR
VRR
theHunter: Call of the WildIncreased texture resolution, shadow detail, foliage density, ambient occlusion, and higher draw distance.
HDR
VRR
1620p
Increased shadows, texture resolution and filtering, higher quality vegetation. Dev compares to "visuals from the high-end PC version."
VRR
World Enduro RallyIncreased shadows, texture resolution and filtering, higher quality vegetation. Dev compares to "visuals from the high-end PC version."
VRR
2160p
VRR
Zoo Tycoon: Ultimate Animal CollectionVRR
2160p
HDR
VRR
HDR
VRR