We have the one planet (Venus) in our system which is likely ballpark for some sort of a 5K - 20K age and looks it i.e. 900F surface temperature, massive thermal imbalance, massive upwards ir flux, total lack of regolith, statistically random cratering, and a surface so pristine as to cause the old earthers to be talking about a “resurfacing event(TM)” .5B years ago. Earth and Mars don’t look like that at all and have to be substantially older than that, but not hundreds of millions or billions of years old.
Then a powerful intergalactic mining operation took over the place and stripped it of all the top side deposits useful to life ~ phosphorous, calcium, sodium, etc. as well as meteor deposits piled up since the formation of the solar system.
Earth was also mined but not as thoroughly ~ which is why we still have 40% of our original crust.
So, who were these guys and when did they do it?
Heck if I know ~ we can put some limits to it ~ certainly more than half a billion years ago, and maybe a billion before that but not much earlier. The meteor debris and detris would be insuffcient to attract secondary goldmining and there'd go the profit in this process.