@Lee D Ok, this is partially operator error and partially an issue. I just realized that yes, the regular metadata is fine. I didn't realize that it's only when I'm looking for mfgr-specific metadata. For example, with the Fuji series, there is some useful info that they write regarding their film simulations. So if I look at generic info, it's the same.
# Before
exiftool DSCF4852.jpg| head
ExifTool Version Number : 12.65
File Name : DSCF4852.jpg
Directory : .
File Size : 7.7 MB
File Modification Date/Time : 2023:09:02 19:25:43-04:00
File Access Date/Time : 2023:09:02 19:25:44-04:00
File Inode Change Date/Time : 2023:09:02 19:38:45-04:00
File Permissions : -rw-r--r--
File Type : JPEG
File Type Extension : jpg
# After
exiftool smaller/DSCF4852.jpg| head
ExifTool Version Number : 12.65
File Name : DSCF4852.jpg
Directory : smaller
File Size : 7.7 MB
File Modification Date/Time : 2023:09:04 10:58:59-04:00
File Access Date/Time : 2023:09:04 11:10:38-04:00
File Inode Change Date/Time : 2023:09:04 11:10:36-04:00
File Permissions : -rw-r--r--
File Type : JPEG
File Type Extension : jpg
However, when I look at the Fuji-specific data, that's missing.
# Before
exiftool -a -G1 -FujiFilm:All -u -sort DSCF4852.jpg| head
[FujiFilm] AF Area Mode : Zone
[FujiFilm] AF Area Point Size : n/a
[FujiFilm] AF Area Zone Size : 3 x 3
[FujiFilm] AF Mode : Zone
[FujiFilm] AF-C Priority : Release
[FujiFilm] AF-C Setting : Set 1 (multi-purpose)
[FujiFilm] AF-C Speed Tracking Sensitivity : 0
[FujiFilm] AF-C Tracking Sensitivity : 2
[FujiFilm] AF-C Zone Area Switching : Auto
[FujiFilm] AF-S Priority : Release
# After
exiftool -a -G1 -FujiFilm:All -u -sort smaller/DSCF4852.jpg| head
fotomonkey@Fotomonkeys-Air ~/Pictures/0823-testing
Notice that after I convert it, the command just returns me to the prompt with no data. So it's a very specific use case. Unfortunately, it's this Fuji info that can help me track down the info used to create the "look" tied to it.