The Coinomi wallet for Android seems to be early in supporting these forks. When it came to claiming bitcoin gold recently, running it in an android emulator an

The Coinomi wallet for Android seems to be early in supporting these forks. When it came to claiming bitcoin gold recently, running it in an android emulator and typing in old private keys was still the most reasonable option for someone with only iOS and macOS devices available. If you had your BTC in a hardware wallet like Trezor during the split, claiming BCH and BTG was automatic with firmware upgrades which only came with considerable delay. Claiming lessor and unsupported forks off a hardware wallet seems like a major chore and security risk since you’d need to regenerate your private keys off-device.