When doing the select similar by area at the end(6:35) to indent the seams I got a bit of an issue as it wasn’t picking up some parts as intended so I had to waste time doing cleanup by hand.
I figured a more convenient way would’ve been to select by similar area the seams and then invert the selection. You might think than it would be the same but actually with the same threshold the seams come out perfectly clean while triangles need cleanup