Thanks for this wealth of relevant links!
If I read correctly in this ocean of technical data, the Medium Resolution Imager was about 46 cm above the soil and the width of the field of view was 7°.
I can deduce the following things:
If the height of the camera is 46 cm with a field of view of 7°, I can advance that the theoretical horizon point (assuming the hypothesis of the perfect sphere) is 1.539 km (0.962 miles) from the camera and the width of the skyline in the image is 188 m. It's theoretical because the relatively flat terrain has some irregularities.
If you consider that the maximum height of hills in that area is 200m, the farthest topographic element visible beyond the horizon point won't exceed 33.633 km.
(On Earth, the previous data would be 2.422 km for the horizon point, 296 m for the width of the skyline and 52.931 km for the 200m hill).
If you were standing in front of Kraken Mare, from a height of 170 cm, the horizon point would be 2.959 km (1.838 miles) from you (Earth:4.657 km or 2.893 miles). You could't see topographic elements farther than 35.051 km assuming that hills in that area don't exceed 200 m. (On Earth, the data would be 55.165 km). The width of the horizon in your field of view (120°) would be 6.404 km ( on Earth, 10.078 km).
I didn't calculate all these data. I used a program to bring you this set of data and finally, it shows that you wouldn't see so much difference from the Terrestrial landmark regarding distances if you were walking on this exotic moon (A tiny change in your perception of the land may however be bewildering, to be checked!
).