Of course not
All this marketing about quantum computer destroying bitcoin is ridiculous. I don't get who makes money out of this bullshit.
Maybe they are just spammy article writers who wants clicks?
Yes, I agree with you, I think it's just a hoax because until now there has been no official announcement from Google about quantum computers. and I think if a quantum computer does exist then I'm sure bitcoin developers will improve security systems and strengthen block security. I'm sure bitcoin developers will try hard to strengthen the bitcoin system and network.
Well quantum computers are getting real, in the last 10 years or so they have made a massive gain on this technology. However, I don't think that quantum computers aim is to break bitcoin, it could have lots of used in other fields, not just in cryptography. Plus, I don't think that they can simply have this to individuals who have bad intention, i.e break or stole someone's private key. I'm sure it will be the authorities or higher academe that will get the first hand if such quantum computers have been developed. And not some hackers or criminals out there.