For all my lack of love for Adobe, LR does have some ease of use things that I would like to see.
Holding the option key while moving the Denoise or Sharpen sliders shows the high pass (?) filter which gives a quick look at exactly what is happening., making it easier to dial in.
Press ‘m’ and instantly bring up a gradient mask. You could even do Ctrl m for brush mask, and Option m for radial mask.
Selecting colors for curves / tone mapping from the image quickly.
There are a lot of little things like these that individually aren’t a big deal, but combined make for faster workflow for many users. And, since these aren’t really new features, but merely faster ways to get to existing features, it shouldn’t be that difficult. I am not asking for more AI or Whiz-bang features. DxO already has an excellent feature set. Make it faster for the human trying to use it.