Affine types are "may use" and linear types are "must use," yeah. That is, linear types are stronger. See https://faultlore.com/blah/linear-rust/ https://fault

Affine types are "may use" and linear types are "must use," yeah. That is, linear types are stronger. See https://faultlore.com/blah/linear-rust/ https://faultlore.com/blah/linear-rust/ for a (now pretty old but still pretty relevant, I think) exploration into what linear types would mean for Rust.