There isn’t enough hard science to prove it either way.
https://en.wikipedia.org/wiki/Hard_problem_of_consciousness

if it is the case we will still need a word for what consciousness did mean

awareness

Sounds a little hippy to me

Yeah...

Because it is?

Quantum physics has been proposed to be part of the solution for the mystery of consciousness. In particular the holistic character of quantum entanglement might provide an answer to the binding problem14. In the 1990s, Penrose and Hameroff proposed a theory of consciousness based on quantum computations in MTs15,16,17,18. Computational modeling suggested that electron resonance transfer among aromatic amino acid tryptophan (Trp) rings in tubulin (subunits of MTs) in a quantum electronic process could play roles in consciousness19. Craddock et al. showed that anesthetic molecules might bind in the same regions and hence result in loss of consciousness20. In a recent experiment, Zhang et al. observed a connection between electronic states and vibrational states in tubulin and MTs21. However, quantum electronic coherence beyond ultrafast timescales demands more supporting evidence and has been recently challenged experimentally22. In contrast, quantum spin coherence could be preserved for much longer timescales23. For example, Fisher has proposed that phosphorus nuclear spins could be entangled in networks of Posner molecules, , which could form the basis of a quantum mechanism for neural processing in the brain24. However, this particular spin-based model also requires more supporting evidence and recently has faced experimental challenges25.

https://www.nature.com/articles/s41598-022-10068-4

Most people just can't understand that shit, so when someone talks about it in easy to use terms, it sounds "a little hippy".

Like, that's where the hippies got their words from in the first place bro...

"Vibing" is an accurate scientific description of two consciousnesses that are agreeable with each other. The people saying it don't always understand it, but most of what "hippies" say about consciousness is pretty fucking accurate.

Why not leave consciousness alone

Why keep insisting the people who always used the term correctly stop because it doesn't match the simplified version you were taught decades ago in jr high?

Science isn't a philosophy, its a process for approaching the truth. Yes, I can't prove what I am saying and it is based more on a strong feeling than direct proof. I think the question of consciousness is a particularly important one, and we know very little about it still.