This seems to be the way everyone applies binding these days.
I think I remember having been shown this but had never used it.
Below is the best link I have found so far. She sews out on an angle from the 1/4" mark at the end of each side - I don't do this. I do a back stitch - machine goes back two stitches, then I use the scissors button to finish sewing so quilt is not attached to machine and I can turn and align easily for next side.
Two little tricks are to pull the binding firm when measuring where to cut so there are no puckers when you sew it and remember right sides of the fabric together and the triangle you create when sewing the mitre points toward the machine - helps me not sew it the wrong way! And you need a generous space between the two end strips to manoeuvre - don't be mean about that.
However, if you make a binding out of pieces, should they all be joined with a mitre or straight?
I think straight looks better in this situation in which case join the last join of the binding straight also.
https://www.youtube.com/watch?v=0vCWpxBRs20&ab_channel=MissouriStarQuiltCompany