Edge Blend Question

I was wondering is there any way to get nicely smoothed edgeblends out of box without manual work ? imho theres almost no difference between running fillet and blend edge on that simple corners - actually fillet dont get that weird triangle on left bottom.

Also does anybody have idea how to get cleaner patches layout on this nice corner ?

btw. i know that there was topic about nicely shaped corners somewhere here but i couldn’t find it :frowning: