All you are doing is anthropomorphising.

You could argue that any new species found on Earth will be part of the carbon-cycle and any plant photosynthesise. But then you find deep sea creatures who live by sulphur vents and never see sunlight.

Assuming all aliens will be bipedal is just our human arrogance coming out once more 😊 Being a biped is great for this planet, what if you lived on a water world? Or a gas giant? You would have grown up on a planet with a completely different set of pressures, thus steering natural selection in a different way.

Again "visible light" is anthropomorphic, there are soooooo many colours we don't see, which is fine for us, because we evolved on Earth.

Two sets of vocal chords? Maybe? Or perhaps zero vocal chords and an ability to transmit complex information via pheromonal exchange.

Who knows???

Fun thinking about though!

Cg