this is a common misunderstanding of Bech32 SegWit addresses. the flags in bitcoin core that prevent you from spending a P2WPKH output that was created from an uncompressed public key are only standard flags which means you can create this address type from an uncompressed pubkey too.
but in practice since nearly all nodes and miners are already enforcing standard rules such funds sent to this type of address would be lost until a miner decides to make an exception.