On video, panning is where you will see it. When I was testing the A7R5 I went to shoot video for both my son‘s fencing competition and my daughter’s robotics competition - I loved the AF, but the footage was all crooked. Other parents loved it because rolling shutter is pretty common nowadays but it drove me nuts. I also tried a few clips with geese taking off a lake at sunrise - it was much better, they are not super fast birds at take off, but I could see the slanted background.
in photography, I shot maybe 20 pictures in ES for the fencing competition and gave up - sabres aren’t straight when fighting but they don’t bend back and forth

I tried on ospreys in flight and it looked good but they don’t beat their wings fast and the backgrounds didn’t have much texture, so that wasn’t an issue. we didn’t have hummingbirds or swallows yet when I tried, but I suspect their wings would have looked funky - it will be interesting to see what Arbitrage reports.
i also shot a street drummer in San Francisco, those sticks had some serious bend

so I went back to MS but then I feel disruptive because of the shutter noise (all in my head because he was way noisier than me, but I get uncomfortable).
All in all, owned it a few weeks and sent it back - keeping the cash for a camera that’s closer to what I like.
i do very little landscape and macro - if I did, I’d own an A7R5 without a second of hesitation but for what I do most of, I could make it work, but I am happier with my A1.