BTG wallet or exchange with BIP39 seed import Can anyone recommend a Bitcoin Gold exchange or SPV wallet for Linux that supports importing wallets from a BIP39 seed? The best I’ve found so far is a fork of Electrum that supports BTG for Windows or exchanges with no wallet import.
This doesn't answer the question directly, but Coinomi running in Genymotion works and allows restoration from a BIP39 seed, per the instructions given here:

https://medium.com/@coinomi/collecting-your-free-bitcoin-gold-btg-coins-da937d4255d1

Genymotion can run under Linux, so while it's a bit of work, one can achieve the desired outcome using this method.