I had a bad experience with what I believe was an uncalibrated zoom lens. Some years back we went to
Costa Rica with a Canon 80D and a Tamron 20-400 mm lens. I'm no pro but I've been taking photos for many years with satisfactory results. However, I recently reviewed the Costa Rica photos to find that they were virtually all noticeably out of focus; why I'm just now discovering this is a bit of a mystery. I'm certain that it was because the lens and camera were slightly mismatched. However, the good news is that through the miracle of Topaz Sharpen AI most were recoverable.

Later I tried to calibrate the lens/camera using the recommended procedure but found it nearly impossible to perform accurately enough to help; it's very tedious. If you decide that you need to do the calibration, send camera and lens to camera manufacturer, have them do it and save yourself an afternoon of frustration

This is a VERY tough question to nail down with examples from Facebook & Forums.

To make any meaningful comment on native color balance and weather or not it has changed from an earlier camera, you need to have a color managed workflow, including a hardware calibrated graphics display, and calibrated Color Targets Like the X-Rite Color Checker Classic. If you want accurate color it is the best $90 bucks you will ever spend.
These go back a Long way to the MacBeth company (then x-rite, now Calibrate)

Anyone can notice or suspect a color shift, but until you measure it, you can't do much with it.
Individual camera can have small differences, if you own multiple bodies, you can color match them.

If you are a casual photographer who wants pleasing color, you do not have to do any of this. While is is certainly good practice to calibrate your display (and use a display worth calibrating) most people do not bother.
And a tiny color shift will not even be noticeable.

However if you want or need accurate color, you need a color managed workflow and a good color target.

Most opinions you read are just that, and they are rarely based on accurate testing. However they do tend to take on a life of their own with opinions and counter opinions.
If you want to know, Test