Good work, I guess!
Personally, I find round corners hideous: they remind me of MacOS… I am of the opinion that corners should be sharp and square. Zero is the best radius of curvature.
What I really like about this is the customisability. Specifically, the ability to set a numeric value for the radius. I would set it to zero!
Of course, there are people who have a different (I would say, questionable) taste and I’m sure they’ll be happy with this. However, I just ask that the option remains not to have this.