BOLT 12 offers don’t necessarily have to use blinded paths
quoting note19vw…tmsmBitcoin Optech #310: BOLT11 Invoice Field for Blinded Paths
This issue summarizes the disclosure of 10 vulnerabilities affecting old versions of Bitcoin Core and describes a proposal to allow BOLT11 invoices to include blinded paths.
https://www.nobsbitcoin.com/bitcoin-optech-310/