diff --git a/lib/shared/markdown.js b/lib/shared/markdown.js
--- a/lib/shared/markdown.js
+++ b/lib/shared/markdown.js
@@ -45,8 +45,8 @@
   prevCapture: string,
 ) => ?Capture);
 
-export type ReactElement = React$Element<any>;
-type ReactElements = React.Node;
+export type ReactElement = React.MixedElement;
+type ReactElements = React.MixedElement;
 
 export type Output<Result> = (node: ASTNode, state?: ?State) => Result;
 
diff --git a/native/account/logged-out-modal.react.js b/native/account/logged-out-modal.react.js
--- a/native/account/logged-out-modal.react.js
+++ b/native/account/logged-out-modal.react.js
@@ -439,7 +439,7 @@
       return null;
     }
 
-    const signInButtons: Array<React.Element<any>> = [];
+    const signInButtons: Array<React.Node> = [];
     if (!usingRestoreFlow) {
       signInButtons.push(
         <PromptButton
diff --git a/native/calendar/entry.react.js b/native/calendar/entry.react.js
--- a/native/calendar/entry.react.js
+++ b/native/calendar/entry.react.js
@@ -95,7 +95,7 @@
 
 function dummyNodeForEntryHeightMeasurement(
   entryText: string,
-): React.Element<typeof View> {
+): React.MixedElement {
   const text = entryText === '' ? ' ' : entryText;
   return (
     <View style={[unboundStyles.entry, unboundStyles.textContainer]}>
diff --git a/native/chat/inline-engagement.react.js b/native/chat/inline-engagement.react.js
--- a/native/chat/inline-engagement.react.js
+++ b/native/chat/inline-engagement.react.js
@@ -35,7 +35,7 @@
   sidebarInfo: ?ThreadInfo,
   reactions: ReactionInfo,
   deleted: boolean,
-): React.Element<typeof View> {
+): React.MixedElement {
   return (
     <View>
       <DummyInlineEngagementNode
diff --git a/native/chat/inner-robotext-message.react.js b/native/chat/inner-robotext-message.react.js
--- a/native/chat/inner-robotext-message.react.js
+++ b/native/chat/inner-robotext-message.react.js
@@ -28,7 +28,7 @@
   threadID: string,
   sidebarInfo: ?ThreadInfo,
   reactions: ReactionInfo,
-): React.Element<typeof View> {
+): React.MixedElement {
   return (
     <View>
       <View style={unboundStyles.robotextContainer}>
diff --git a/native/chat/inner-text-message.react.js b/native/chat/inner-text-message.react.js
--- a/native/chat/inner-text-message.react.js
+++ b/native/chat/inner-text-message.react.js
@@ -32,7 +32,7 @@
   sidebarInfo: ?ThreadInfo,
   reactions: ReactionInfo,
   deleted: boolean,
-): React.Element<typeof View> {
+): React.MixedElement {
   return (
     <View>
       <DummyTextNode withoutMarkdown={deleted}>{text}</DummyTextNode>
diff --git a/native/chat/swipeable-message.react.js b/native/chat/swipeable-message.react.js
--- a/native/chat/swipeable-message.react.js
+++ b/native/chat/swipeable-message.react.js
@@ -1,6 +1,5 @@
 // @flow
 
-import type { IconProps } from '@expo/vector-icons';
 import * as Haptics from 'expo-haptics';
 import * as React from 'react';
 import { View } from 'react-native';
@@ -86,17 +85,15 @@
   return interpolate(translateX, [0, 80, 120, 130], [0, 30, 120, 130]);
 }
 
-type SwipeSnakeProps<IconGlyphs: string> = {
+type SwipeSnakeProps = {
   +isViewer: boolean,
   +translateX: SharedValue<number>,
   +color: string,
-  +children: React.Element<React.ComponentType<IconProps<IconGlyphs>>>,
+  +children: React.MixedElement,
   +opacityInterpolator?: number => number, // must be worklet
   +translateXInterpolator?: number => number, // must be worklet
 };
-function SwipeSnake<IconGlyphs: string>(
-  props: SwipeSnakeProps<IconGlyphs>,
-): React.Node {
+function SwipeSnake(props: SwipeSnakeProps): React.Node {
   const { translateX, isViewer, opacityInterpolator, translateXInterpolator } =
     props;
   const transformStyle = useAnimatedStyle(() => {
@@ -146,6 +143,7 @@
     : colors.light.listForegroundLabel;
   const coloredIcon = React.useMemo(
     () =>
+      // $FlowFixMe[incompatible-call]
       React.cloneElement(children, {
         color: iconColor,
       }),
diff --git a/native/components/node-height-measurer.react.js b/native/components/node-height-measurer.react.js
--- a/native/components/node-height-measurer.react.js
+++ b/native/components/node-height-measurer.react.js
@@ -50,7 +50,7 @@
   // These are the dummies currently being rendered
   currentlyMeasuring: $ReadOnlyArray<{
     +measureKey: string,
-    +dummy: React.Element<any>,
+    +dummy: React.MixedElement,
   }>,
   // When certain parameters change we need to remeasure everything. In order to
   // avoid considering any onLayouts that got queued before we issued the
@@ -504,10 +504,11 @@
   render(): React.Node {
     const { currentlyMeasuring, iteration } = this.state;
     const dummies = currentlyMeasuring.map(({ measureKey, dummy }) => {
-      const { children } = dummy.props;
-      const style = [dummy.props.style, styles.dummy];
+      const { children } = (dummy as any).props;
+      const style = [(dummy as any).props.style, styles.dummy];
       const onLayout = (event: LayoutChangeEvent) =>
         this.onDummyLayout(measureKey, iteration, event);
+      // $FlowFixMe[incompatible-call]
       const node = React.cloneElement(dummy, {
         style,
         onLayout,
diff --git a/web/navigation-panels/navigation-panel.react.js b/web/navigation-panels/navigation-panel.react.js
--- a/web/navigation-panels/navigation-panel.react.js
+++ b/web/navigation-panels/navigation-panel.react.js
@@ -20,7 +20,7 @@
 
 type NavigationPanelContainerProps<T> = {
   +tabSelector: AppState => T,
-  +children: React.ChildrenArray<?React.Element<typeof NavigationPanelItem>>,
+  +children: React.ChildrenArray<?React.MixedElement>,
   +horizontal?: boolean,
 };
 
@@ -33,7 +33,7 @@
 
   const items = React.useMemo(
     () =>
-      React.Children.map(children, child => {
+      React.Children.map(children, (child: any) => {
         if (!child) {
           return null;
         }