Bits of page content are missing when running Safari in some macOS VM configs. Parts of the page go missing until you background Safari, when they show up (because of tile size changes).
<rdar://112875397>
Pull request: https://github.com/WebKit/WebKit/pull/16547
Committed 266767@main (223cdceb7637): <https://commits.webkit.org/266767@main> Reviewed commits have been landed. Closing PR #16547 and removing active labels.