https://www.fieggen.com/shoelace/doublestartknot.htm
And then also a surgeons knot is shown:
https://www.fieggen.com/shoelace/surgeonknot.htm
(which doesn't use the double starting knot)
I do both together, starting with two twists and then also wrapping the loops twice.
I experimented with the double knot following some foot pain; the advantage for me is that the knot doesn't really slip any, allowing me to set the tension I want and not have to revisit it. I guess you then also have to make sure not to over-tighten.
I read about it here: https://www.nydailynews.com/sports/more-sports/running-doc-d...