Allow decoupleUpdatePriorityFromScheduler to be set (#19272)

packages/shared/forks/ReactFeatureFlags.www.js

@@ -24,6 +24,7 @@ export const {
   enableFilterEmptyStringAttributesDOM,
   enableLegacyFBSupport,
   deferRenderPhaseUpdateToNextBatch,
+  decoupleUpdatePriorityFromScheduler,
 } = dynamicFeatureFlags;
 
 // On WWW, __EXPERIMENTAL__ is used for a new modern build.
@@ -75,7 +76,6 @@ export const warnUnstableRenderSubtreeIntoContainer = false;
 // don't have to add another test dimension. The build system will compile this
 // to the correct value.
 export const enableNewReconciler = __VARIANT__;
-export const decoupleUpdatePriorityFromScheduler = __VARIANT__;
 
 // TODO: This does not currently exist in the new reconciler fork.
 export const enableDebugTracing = !__VARIANT__;