most stock software can see funds that have been issued for more than one month, but these funds must be funds that have purchased domestic stocks. For example, some funds are specialized in investing in foreign stocks, which basically won't be available in stock software.

Rongtong SZSE 1 is an index fund. If you want to find ETF funds in the stock software, you should see it. Maybe you chose the wrong classification.

fund companies purchase funds, which is a direct selling channel; Tongda letter purchase fund belongs to the consignment channel. The difference is not big, mainly depends on which purchase rate is cost-effective, usually there should be no difference.

in addition, the stock trading account can also buy ETF and LOF funds, the former belongs to index funds, and the latter belongs to open funds that can be traded in the secondary market.