Thank you DennisP. So, slightly paraphrasing, IIUC : - multisig is more adapted for organizations, there is no need of trust between the key holders. And it's

Thank you DennisP. So, slightly paraphrasing, IIUC : - multisig is more adapted for organizations, there is no need of trust between the key holders. And it's more secure, because it uses a more widely audited code than that of wallets. - SSS seems more adapted for individuals. It has more flexibility and privacy in N and M, since no P2SH script identifier is sent to the blockchain. I guess transaction fees should also be lower.