Cottagecore has a failure mode, and it is worth naming: it becomes a lot of small sweet things on every surface. The aesthetic rewards abundance, so it quietly encourages accumulation, and a cottage room with too much in it stops feeling restful and starts feeling like a shop.
The version I collect for is built on materials rather than motifs. Linen, unglazed clay, raw wood, dried plants, unlacquered brass. All of them soft, all of them honest, none of them shouting. You can have very few objects in a room and still land the look if every one of them is the right material.
Where cottagecore differs from French country is intent. French country looks inherited. Cottagecore looks made — handled, mended, arranged by someone who was enjoying themselves.
The discipline that makes it work
Leave surfaces half empty. Genuinely half. The romance in this look comes from the softness of the materials and the light falling across them, and both need space to be visible. One dried arrangement on an otherwise clear table is the whole aesthetic; the same arrangement crowded by six other objects is just a busy table.