>>12258466Any chem or biofag will tell you how laughably improbable it is for our life form to have formed at all.
Random molecular collisions had to occur to form the first amino acids. These had to randomly coalesce into the first proteins which had to randomly coalesce into RNA at a time when single cellular life forms had also randomly coalesced.
We'd be lucky to see another cellular life form in our galaxy. If we get out in space and it's Star Trek with a new humanoid species every other planet, it's good odds that we were life-seeded.
But as others have said, that assumes cellular life. There could be other life forms out there that are easier to make.