Don't be in a haste to make money, always remember that there isn't any free money on the internet. Noone will give you such huge amounts of BTC for free.
This has always been the strategy of scammers because they know their are some people who want to make money so fast without any stress will surely fall victim. This style of scamming is something that is not new but even till date some people still believe money can be made online without working for it. There are some well exchanges I know that do give away to new customers if they deposit some amount of asset, I haven't experience such thing or even from people around me, i don't believe in all I things like this because I know they do not exist. Give away and free money like ths is what they use in getting people that wants earn money quick.
There is nothing like free money and if you dont want to fall into scams it is just better to avoid free offers from strangers and platforms that their is no clear understanding of how people can money. So scammers disguise to be so real, don't just be so fast to grab money online, make your research to know how authentic and real with who you are dealing with online for money.