I remembered some of the issues with large intervals and slurs were discussed in this thread from last spring. It does look like the symmetry bug with octave slurs was fixed in 3.5.

The middle section of SCORE’s slurs looks very flat. I’ve only used flat slurs in Dorico by checking the Properties box on a longer slur, not as a global default, but there does seem to be some sort of bug or drawing error in Dorico when flat slurs are used as short slurs. This slur shape is ridiculous, (flat slur, shoulder offset 1/2) but regardless of settings, it shouldn’t be more narrow in the middle, should it? This seems like an error.

It’s subtle, but now that I’ve seen it, I can’t unsee it even with longer flat slurs:
So that kind of rules out trying to use flat slurs to mimic SCORE’s look. There seems to be some sort of an error in the documentation with Slur Shoulder Offset too.
1/2 is not
decreased from 1/5. Perhaps that’s supposed to be 1/12 or something? I’m not getting anything like that regardless of settings so clearly there are other settings in play too.
I also can’t figure out what “Maximum angle for slurs” actually does. The illustration looks like it’s the angle from endpoint to endpoint in relation to the staff, but clearly that’s not the case. If so setting the maximum angle to 0 should result in both endpoints being at the same place vertically and obviously they don’t. I think it’s overridden by the “Maximum distance to move endpoints” setting, but the slur shape will still change by changing the angle setting, even if the endpoints remain in an angle that is outside the range of your angle settings. Does anyone know exactly what this setting does?