Other options are the following multicurrency wallets that are available on Linux OS but beware they are not open source except guarda wallet.
1. Coinomi Wallet - https://www.coinomi.com
2. Guarda Wallet - https://guarda.com
3. Atomic Wallet - https://atomicwallet.io
4. Jaxx Liberty - https://jaxx.io
5. Exodus - https://www.exodus.io

All support BTG.