[waterhouse]

This is the most awesome approach for rounded corners: https://ridiculousfish.com/blog/posts/roundy.html

[bmicraft]

Oh wow, it's even worse than I imagined

[robocat]

Funny that it is slightly broken on Safari Mobile[1]

Zoom in on the [Touché!] button and there are artifacts between the rows that make up the corners.

  [1] iPhone OS 16_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.6 Mobile/15E148 Safari/604.1