For example, if you buy in Alipay, you can go directly to Alipay for enquiry. You buy on third-party platforms, such as Tian Tian and Zhonghui Fund. And you can also go to the corresponding platform to query.
If you bought it in a bank, you can check it in the bank's online bank. Now almost every bank's app has a fund section.
Reminder: investment is risky and needs to be cautious.