No. At 20 lightyears away, you'd need a telescope 1000x the size of the Earth for a single human to appear as a pixel, and even then you'd only be seeing 20 years into the past. This gets exponentially worse the further you go.

Millions of light-years away, there's not enough photons to collect. You'd need a telescope the size of several galaxies, made of material harvested from thousands of other galaxies, just to make out the planet.