Since GPLv3, {L,}GPL have been "grand unified" to simplify things. Like code reuse, LGPLv3 is a just small patch on top of GPLv3 that says "given Condition X, y

Since GPLv3, {L,}GPL have been "grand unified" to simplify things. Like code reuse, LGPLv3 is a just small patch on top of GPLv3 that says "given Condition X, you don't have to follow Clause Y in GPLv3", it's literally just a few short paragraphs. Without the original GPLv3 text, LGPLv3 is meaningless, like a running an executable without its shared library. Hence, although many people don't realize it, technically every project that licenses itself under LGPLv3 must contain a copy of GPLv3.