No, it doesn't. Bitcoin Gold is a fork of Bitcoin which is completely different and independent. Bitcoin Gold can be mined with GPUs whereas Bitcoin needs to be mined with ASICs so there is no competition between these two coins (in terms of mining). Bitcoin Gold was supposed to be more decentralized thanks to the different mining algorithm but it turned out to be a huge flaw. Bitcoin developers have no reason to get back to GPU mining, it would be disastrous since the number of ASICs is enormous.