Challenge: cannot migrate a webi report from a higher environment BI 4.3 SP3 to a lower environment BI 4.2 SP9

We could export the metadata from BI 4.3 SP3
https://blogs.sap.com/2020/11/06/metadata-reporting-for-web-intelligence-documents/
Can we create the webi report on BI 4.2 SP9 using the metadata export? Would the metadata export from bI 4.3 need to be update for import on BI 4.2 SP9?
Note that the webi reports are complex so recreating them from scratch is not an option.
Regards,
Patrick