Nothing else of significance ...
It leaves me yawning, that one!
Not sure about that , John.
Big new feature is a new slider - Texture. For me it's a subtler form of Clarity, like a blend of Clarity and Sharpening, and it's a global or local adjustment. I like to use it at negative values too.https://theblog.adobe.com/from-the-acr-team-introducing-the-texture-control may interest people.Nothing else of significance, other than changing all the LR app names, again - just to make sure everyone is equally confused.
Is this similar to C1’s “Structure?”
Indeed, there's Flat Field Correction; absolutely doesn't suck:https://helpx.adobe.com/lightroom-classic/help/whats-new/2019-3.html#flatfieldcorrection
Hopefully Adobe will steer well clear of such rabbit holes.
And you can do localized adjustments with it in LR.
Thant's great but you can do localized adjustments of any tool in C1 (unlike LR)
My photo editor is better than you photo editor?