Same features: depends a little on what a platform already has. The same option on one platform may be far easier to implement than on others.
Same Look: never gonna happen, probably not even for different exporters from the same program, unless it is the same author. I try to use whatever UI there may already be in Blender, if possible. This hinders making things look the same.
You are more likely to get similar features from different glTF exporters, though we do not control the one for Blender (do not know whether they are accepting PR’s). Simply because the scope of glTF is smaller.
While ideally it would be nice, I have a feeling that many more people only use one program. Those wanting free, go with Blender or maybe Unity. Those doing it for work at a company, have less concern about cost, but may be mandated by policy for consistency reasons to stick with the approved one.
The number of artists is far out numbered by the number of programmers, as well. They probably do not want to be switching, as they are probably hanging on for dear life on the program they use.