What is the ruling on participating in investment funds compatible with the provisions of Islamic Sharia offered by local banks, and are they truly compatible with Sharia?

The ruling on investment funds and their compliance with Islamic law depends on understanding the transaction. It is preferable to consult scholars in your country to clarify the Shariah ruling. If the transaction is confirmed to be compliant with Islamic law, it is still not permissible to deal with usurious banks through these funds, as this constitutes aiding them.