Is it safe for British investment immigrants?

Investment safety is the most important issue in the process of immigration. After all, it is hard money and cannot be cheated. I don't know what immigrants the landlord is talking about. I remember my friends who work abroad told me that the mainstream British immigrants are 2 million pounds investor visa and 50 thousand pounds innovative immigrant visa, which are similar in security. However, 2 million pounds is not very demanding for applicants, as long as it is a simple investment; 50,000 pounds is a lot of money, but you need to invest in a qualified British innovative enterprise or start your own business, and you also have certain requirements for English. However, one of their customers approved it in seven days, which was very fast.