Moon artifacts would be there for a very very long time, and yes there would be no burying, techtonic activity, or oxidizing. Only impact events and solar wind

Moon artifacts would be there for a very very long time, and yes there would be no burying, techtonic activity, or oxidizing. Only impact events and solar wind really change the moon, the former is rare now and the latter insignificant. Evidence of a human presence on the moon will be there for potentially at least a billion years. The footprints might last that long, and actual artifacts made of metal (including gold) surely will.