For the US one, at least, they give examples of where electronic signatures are pretty common and straightforward, and where you need to be careful.
Software-wise, they have features to help you show evidence of who signed, where, and when in multiple ways. Nothing magical, though.
If there were secret sauce, you would think they’d mention it prominently, but they don’t.
https://www.docusign.com/products/electronic-signature/legal...