Web3 is not a scam but for sure many scammer will take advantage of its hype and will create their own Web3 platform simply to do the scamming so you still need to be careful on dealing with this kind of development. Web3 will be the new trend, many projects are looking to expand their technology into Web3 so I see this to hit the mainstream by next year. Invest on good projects, look for the top coins who are already working with Web3 and other top companies, they might be the next gem for you.