@fanboynz , this is likely related to my issue which is still not resolved: Cannot scroll on Downdetector with shields on
The popup now is shown on Desktop as well too, and scrolling is still locked on desktop.
@Mattches I had attempted to ping fanboynz but have had zero luck, and it seemed 289wk on my thread found more that needed to be blocked.
I think these are linked, though the popup never showed up previously for me (but now is, just like the OP here).