How to format wd bpk j0050bbk-wesn to be compatible with windows 7

I just purchased a 5T WD BPK J0050BBK-WESN to transfer all files to a new computer, which will either be supplied with Windows 10 or 11. How do I format the new external 5T WD drive for Windows 7?

After formatting it to Windows 7, I’m assuming the my new computer I purchase will be able to read this newly formatted to Windows 7 external drive I mentioned above.Please advise.

Thanks in Advance!

NTFS would be the safest choice