Maybe they are 100k-millions years ahead of us and are basically immortal AI's with iqs of 200k+ (so we won't understand anything they do or say and they find us literally less interesting than grains of sand) which are clustered via an higher dimension quantum entangled connection to the home world and the backup world? For sure if we manage to create AGI (no timelines; let's say we have it in 10k years from now and better than human body robots to match), we will surely shoot that into space to be 'forever' by the millions to explore. I would assume that every advanced race would do exactly that and if they are millions of years ahead of us, I cannot phantom them still being close to the barbaric mortal animals that we are, or they wouldn't have survived that long.