to answer my own post from a few days ago,
today there was an announcement from BitFlyer that they delayed the credit of BTG balances to customers, and the start of BTG trading because of security concerns (malware in BTG wallet etc...)
but they are still committed to do this in the near future
This is a very problematic coin. I'm afraid to buy it, even in order to immediately sell it. There is no guarantee that I will not be stolen. Maybe in a few months the project will start working normally