When using F10 to take a screen capture, it has recently (since about July 14th), not been including any of the foreground (statistic boxes, list of riders, wattage, map etc.) The picture looks almost the same as the _clean version. One of them is usually brighter though.
It seems to be a bit inconsistent, because a week or so ago I tried to get a screen capture of the ride report, and all it recorded was a clean picture of the road etc. But on 7/26 it did actually record the ride report.
Incidentally, it also seems to be recording two files every time now (the regular file and with the _clean suffix). But neither have any of the foreground information.
I’m on Win 10, and run Zwift in full screen mode.