Apollo was active on Earth until very recently. The only one of the ancient deities to still have a temple, Apollo was involved in the recent upheaval at Phillae in Egypt, in that his temple were the original instigators of the digging there.
Subsequently it has been learned that the Osiris had requested the dig or Zeus, and Zeus had placed the matter in Apollo’s hands. During the eventual disagreements between the Goa’uld about the outcome of the dig, Apollo’s Hat’tak was destroyed, but neither his body not his sarcophagus were recovered from the debris.
His temple in Athens is a major tourist attraction, and sells souvenirs of ‘Ancient Greece’. The priestess there is named Pythia, and it has been confirmed that she is also a Goa’uld.