Sorry, my point was, multisig and Shamir slove different problems.

sime

Shamir is a (great) recovery technique. You set up to the shares once and distribute them however you see fit.

I give example of Shamir use case in another thread: 

bitcoin

What do yall think of shamir backup? Cool option for 2-3 ppl business treasury?

thebtctoto

Shamir is a (great) recovery technique. You set up to the shares once and distribute them however you see fit.

You can multisig on top of it.

I give example of Shamir use case in another thread: https://stacker.news/items/78455