I'm more of a throwback guy who cut his teeth on tight Ross courses with small greens. The question was posed does it still feel Rossian to me and I'd argue it doesn't. Inverness plays more like an open links style course minus the water. The broadening of the fairways and tree removal they did are primarily responsible for that.
How would you characterize a "Rossian" feeling course, in general? What features would / wouldn't you expect to see?
I've played a healthy number of Ross courses, and have never felt there was a "typical" Ross style. In my experience, his courses varied based on where they were located, the terrain, the soil, the budget, and many other factors, I am sure. In reading about the hundreds of his courses I have not played, there seems to be even more variety. Among the gca crowd, I'm hardly well-educated on Ross, but feel comfortable in asserting a few basic ideas.
I don't view tight, tree-lined courses with small greens as typical of Ross at all. If anything, those courses are likely a product of tree planting that occurred at courses across the country in the 60s-80s, and green shrinkage due to years of sub-optimal course maintenance practices. In studying numerous Ross courses, particularly when viewing original plans and pre-1940 aerial photos, I can't recall too many heavily treed courses.
FWIW, the gca archives (1030 pages w/ ~25 topics per page) include a treasure trove of information on Ross, his courses, and everything you could ever imagine related to them. There are too many to cite, but I have found this one especially informative.
https://www.golfclubatlas.com/forum/index.php/topic,65481.0.html