WCAG 2.1 Reflow vs Resize Text

The WCAG 1.4.10 Reflow asks to support width 320 CSS pixels without horizontal scrolling. The requirement is written in such a way that an author can test for reflow on a desktop browser with typical 1280x1024 pixel dimensions by zooming the content to 400%. If the content expands without requiring scrolling in both dimensions, this is mathematically the same as reducing the window to 320x256 pixels.

The WCAG 1.4.4 Resize Text asks that Text can be resized without assistive technology up to 200% without loss of content or functionality.

Does the 200% Text resize requirement multiply with the 320CSS pixels requirement? In other words, if I set the default font size in Chrome to 200%, do I still need to support the reflow to 320px width aka 400% zoom?