Right, besides, it seems that those exported files can’t be imported into wallets that support the BIP 329 import feature, since the files are encrypted.
Perhaps it depends on which of the two options under "Advanced Backups" you choose. "Export Tags & Labels (BIP-329)" or "Download Settings & Metadata." The first should allow you to later import your labels in other BIP-329 supporting wallets, like Sparrow Wallet.
This is what their
documentation says:
You can now export your wallet metadata in BIP-329 format! This will save your Notes and Tags in a way that you can easily import them in other software wallets, like Sparrow. Head to Advanced backups under Backups in the app menu to find this option.