2019 PS Compositing Engine Inconsistent and Unusably Buggy. It clips things depending on zoom scale and exactly how one clicks or uses tab to navigate fields. Please have real people test your software. All of this was immediately noticeable to me.
I encountered so many bugs with masks on smartfilters not working when you save that inside a smart object it's not applied to the smart object above. blur a layer also blurs layers mask instead just blurring and masking out. display errors when zooming or not updating changes on screen etc.
just adding my voice to this. vr 20.0.1 on 2017 MB Pro. I also have chosen to use 'legacy compositing engine', and this has corrected many but not all of the blending problems.
I continue to have trouble with stamp tools and brushes. I'm unsure if these remaining problems are related to the composting engine, to photoshop disagreements with the graphics hardware, or if this is just life now under the New Adobe