I would like to point out that the sharpest corner function has severely degraded in this version of cura.
Here is what it looked like in 4.13.1
here is what it looks like in 5.3.0
showing both the smart hiding and hide seam results. It makes me rather sad because I love 5.3.0, it's so much faster, but on rounder models, it looks much worse even than shown here.