No city of gold was found, and it was not still lost.
Debated. Lost Golden City is only a nickname for a big mud-brick settlement.
The ruins are on the west bank of Luxor, between the temple of Rameses III at Medinet Habu and the temple of Amenhotep III at Memnon. The page says the city runs west toward Deir el-Medina. Amenhotep III founded it. He ruled about 1391 or 1386 to 1353 BC. Mud-brick walls still stand, some about 2.7 metres tall, and they zigzag. Rooms held ovens, tools for spinning and weaving, moulds for charms, clay seals, pottery, rings, and scarabs. A jar of dried or boiled meat carries writing from year 37 of his reign. The team had been looking for Tutankhamun's mortuary temple and found this city instead.
The page says people still ask why the rulers moved their capital to Amarna, and whether anyone lived here again after that.
https://www.ancient-origins.net/news-history-archaeology/lost-golden-city-0015174