This is a common confusion. While BOLT12 is often advertised together with blinded paths, one can use blinded paths with BOLT11 as well. LND does support this as far as I know. However, network support is more uncertain, meaning that payments with blinded paths may fail because nodes on the path do not play ball. In addition, BOLT12 doesn't need to use blinded paths, and if I understand correctly no major implementation has a really good implementation yet. For instance, a public CLN node cannot create a BOLT12 invoice with blinded paths that doesn't reveal the recipient's node id. Not sure where Eclair is here, and donno at all about newer stuff like Alby, LDK, Electrum, etc. either.