Thanks for your post.

I have added this issue to the tracker:
Issue 2363 – Preserve up-to-date timestamp when downloading files
You can vote for it there.

Suppose you open a directory in WinSCP, then modify one of the files in that directory using external tools, and then transfer the file to another computer. In this case, a modified file will be copied, but the date of the copied file will be the old date of the last edit/creation.

Using WinSCP 6.3.3 in Commander mode on Windows 11 Home.