Say hypothetically a really rich billionaire wants to donate/invest a lot of money to/in you what would be the best non crypto option to get that money since PayPal most bank accounts for that matter would stop and question you on it and probably wouldn’t believe it’s a donation?
It’s a scam. Do not engage. If a billionaire really wanted to send you money, they can pay for the lawyers and accountants to make sure it is all above board. Maybe they make a foundation and give you a cushy job there. That’s how actual billionaires do it. What you do with after is up to you (and your countries’ tax authorities, no doubt.)
Ironically, if it weren’t a scam, then crypto can be the safest way to receive any funds. If you securely generated your own crypto wallet, and sent him an address on a reputable blockchain to send funds to, and he actually sent them, then the money is yours, forever, no backsies.
Of course, that’s not how crypto scams work, either. They always guide you to use a wallet that they control (and can drain funds out of easily), or tell you to send crypto to them first to unlock something.