Quickly place the carpet against a square one grid lower than the water surface, and the carpet will float.(There is a video after the attachment is decompressed)(in Java Edition 1.17.1)
Linked issues
Comments 2
Duplicate of MC-17833, resolved as "Works As Intended".
There is a video after the attachment is decompressed
in Java Edition 1.17.1
version not 1.17.34