For anyone interested in watching/listening to my series for Torah in Motion on the Origins of the Oral Torah, all four classes are available on their website here: https://torahinmotion.org/programs/e-tim-the-origins-of-the-oral-torah.
And, of course, the articles I wrote on the topic are available at 18Forty: https://18forty.org/wp-content/uploads/2022/12/Lindell-Origins-of-Judaism-Full-Series-1.pdf.
Yosef Lindell 