That's true, but also note that calling from_iter directly might be more concise and readable in the case where you need to specify the type and don't have a let to hang it on, or want it to look like T::new() and T::from() for consistency. FromIterator is even in the prelude since edition 2021, so it doesn't need to be imported to be used explicitly. So, Foo::from_iter([elem, elem, ...]) will work for every collection that you could also collect() into.
5 Likes