also, no, an uncompressed ECDSA key is 64 bytes, a compressed key has only the sign of the second coordinate, only two are really needed, which is 33 bytes

65 bytes is not the length, that is a typical signature, i could be wrong, maybe there is a type byte for uncompressed ones, i never deal in uncompressed signatures as they aren't used in bitcoin, lightning or nostr

anyhow, point is if it's uncompressed pubkey then it's redundant to include any more than the 257th bit, the sign bit from the second coordinate