YouTube, the Google app, and Photos now offer options to show widgets via the new iOS 14:

To install a Google Widget, first make sure you have the Google Photos app, YouTube Music app or Google app downloaded from the App Store. Then follow these steps:

1. Press and hold  on the home screen of your iPhone or iPad
2. Tap the plus icon on the upper left corner to open the widget gallery
3. Search for & tap on the Google app, YouTube Music or the Google Photos app
4. Swipe right/left to select the widget size
5. Tap “Add Widget”
6. Place the widget and tap “Done” at the upper right corner