There is a difference, but this does not mean that the situation in Sudan is not severe. It is. Sudan has been under the world's radar for most of the time, and most people think of Nilotics when they hear Sudan. They don't know much, and the war there today has not been talked about other than in deep dives, which most people avoid. Even in Omar al-Bashir's days, people at best knew Sudan was an African country, but they did not know anything beyond that. Somehow, that has been carried into the conflict situation where things are less present.
Also, I think the West might put less emphasis on it because their partners in the UAE are doing a lot of dirt. That is just my speculation. People in Sudan use Arabic to talk about the matter on social media. The nitty gritty aspects are behind the language barrier. They have a high literacy rate and many are educated, so they engage in their own world and, for the most part, can be consumed by the Arab world if on an individual basis, though the powers either do not involve themselves or incite problems.
Sudanese in the West bring light to things on an activist level, but it might not be far-reaching. If you don't have a Western media engine, then it does not count. The cadaans have to be invested and somehow they don't go beyond the basic long-form analysis every month, humanitarian emphasis from the UNs, and things of that nature. It is fair to say it has not been acknowledged properly in a public forum.
The conflict in Ethiopia, on the other hand, was very publicized. This is a far better example of a double standard. Every controversy and conflict from the dam to the internal war was published all the time when they occurred. The thing is, Ethiopians in the West have as little voice as Sudanese, so they were not a major factor in the voicing. In my personal speculation, it comes down to how Ethiopia was leveraged and amplified as an important case via the AU, which Sudan has been constantly snubbed from because of the Arab Muslim factor.