Just answer one of your main questions. Buying funds on the fund website is not necessarily safe. Not that it's not safe. After all, some fund companies are regular fund companies. You must first confirm whether this fund company is well-known. General fund companies have a lot of information about them on the Internet. Then there are channels for you to know about these companies.
If it is an advertisement that pops up on a web page, it may not be credible. But if it is a fund company recommended by Bank of China or ICBC online banking, there will be no problem. What fund company do you want to buy? Tell me the name, so that I can help you confirm whether it is formal or not. My email address, Liteng199 1@foxmail.com.