Can't help but wonder looking through the gifs, am I actually insane that I MUST fillet, chamfer, or chamfer AND fillet basically every single one of those edges[1] with with tangency weight of 1.5 where possible, until the shape takes a generic apple/bauhaus/lego/ikea style? I'm aware that doing so don't necessarily improve load distribution, but I just can't stop rounding those corners.

Am I really the only one?

1: http://numpad0.com/imgs/2026-01-23%20001128.png

You are not alone. I like to round the edges and corners. I feel that it should help the strength on concave corners at least but honestly have no evidence to back this up.

No idea of your "tangency weight" bit though. I use blender bevel tool.