These are some great shots; I admire good "street" shooting, even though it is not my preferred genre or comfort zone. The LUT you're using suits it well. If the S9 had a remote release socket I would have been very interested in it as a compact, lightweight camera for astrophotography, where an EVF is not necessary (but a cable release often is).
I am noticing green and magenta colour "splotches"/banding in some of your images here, the same issue I am seeing on some ooc jpegs from my S5 (I have a thread in the forum on this subject). From this and other sources online it seems this jpeg issue is evident in the newer cameras as well. Hopefully Panasonic can address this, especially since they are now marketing ooc jpeg-centric photography.
No, no splotches on my computer(s). And, none on your previous posts on the topic showed up on my computer(s) either, no matter how hard I looked for them.
Have you tried a different monitor? And maybe a different computer? And have you used a color calibrator on your monitor?
Honestly, I tried really hard to see what you are seeing, and I can't, so I think you may need to do some detective work to figure out where the problem actually is. And I don't see splotching in my own S5 JPGs either...
-J
Thanks jalywol for the feedback; I'm using an M2 Mac Mini with
this Lenovo QHD monitor , and it does not show the same artifacts when I view RAW files or jpegs converted from RAW after editing, nor did it show this type of artifacting when I was shooting ooc jpegs with my former Fuji gear. I don't want to hijack the OP's post, so I won't pursue this much further here, but here are some screenshots of the issue as I'm seeing them out of the S9 (might be easier to see with the loupe):

Screenshot from a LUMIX S9 video on the LUMIX USA YT channel. Green and magenta splotches in the white van.

From the OP's video: blotches all through the beige walls with the numbers.

From the op's video: horizontal green and magenta bands in the sky (slightly adjusted shadows so it can be seen a bit better, but I still see it in the original).

From Emily Lowery's S9 video: huge blotches in the wall behind her.

Also from E. Lowery's video: green and magenta artifacts all over the camera grip, screen, etc.

From Panasonic's S9 release video: green and magenta on the orange wall.

My own ooc jpeg from the S5: green and magenta throughout the pond water.

Screenshot of the RAW file for the previous image. No green and magenta patterns.
Again, when I view, edit and export RAW files to jpeg, there is no such artifacting. When I lift shadows in the underexposed or more featureless areas of the image, they are nice and clean. The only time these artifacts are happening are with some ooc jpegs. The OP has some images where I can't see any of the artifacting, which is also the experience I have with many of my jpegs. So I shrug my shoulders and continue to shoot RAW+FIne :-|