in this thread you can see how much people are actually confused
this is my resum of information I found so far :

BTG fork should be dead easy if - there is realy strong replay protection
                                               - they will release any wallet supporting btg to claim your btg

what is a fair bit more dangerous is 2x fork as there will be no strong replay protection and nobody so far gave a proper advise how to use optional replay protection, where youre suppose to send bitcoin with two outputs in one transaction.
also unlike with BTG after the 2x fork the hash rate will decrease by extreme amount so we can expect milions of unconfirmed transaction and I gues those tricky miners are so bad that theyre able to make 51% attack as well to destroy LEGACY BITCOIN. this is scarying enough...