Using the open-source Anchor wallet with Libre chain.
The Anchor Wallet for Mobile and Desktop by Greymass is an open-source and widely used software that runs on Windows and Mac.
It supports multiple chains as well and enables storage of your private key encrypted on your device or inside of a Ledger Hardware Wallet. Anchor has an extremely strong track record of reliability. Greymass is also the developer of the Signing Request that is behind the way the LIBRE blockchain communicates with apps including the web dashboard.
Enable Libre in Anchor
If you are running Anchor v1.3.7 or older, you can follow these instructions on adding Libre to Anchor Wallet (prepared by Cryptobloks) https://cryptobloks.gitbook.io/using-anchor-wallet-with-the-libre-blockchain/