In 1920, the average price of gold per troy ounce was $20.68USD[26.2 kB pdf]; 1 Kilogram = 32.15075 Troy ounces. Average house price in the 1920's was $6,296.
$20.68 USD * 32.15075 oz t = $664.87751 USD * 10 = $6648.7751 USD
In 2023, the average price of gold per oz t was $1,940.54 and the average home price was $495,100.
$1,940.54 USD * 32.15075 oz t = $62,389.81641 USD * 10 = $623,898.1641 USD
This meme is credible, excepting errors in my assumption that 1 kilogram of gold is equivalent to 1 kilogram of common material.