We use EditReady to rewrap older camera media. A benefit of the rewrap, besides being able to leave files in place when importing, is you can have EditReady create unique filenames for the clips so there's never any chance of naming collisions or confusion (like 50 files all named 0001). I usually prepend the shoot date so if they were shot today, something like 20240801-0001.mov, 20240801-0002.mov, etc.
If FCP doesn't date sort the rewrapped files the way you'd like, I wrote a simple bash script that changes their modification dates to their creation dates.
#!/bin/bash
for i in *.mov
do
created=`/usr/bin/GetFileInfo -d "$i"`;
/usr/bin/SetFile -m "$created" "$i";
done