Yes, there is a format painter in Google Docs. It's a useful tool that can save time when formatting the same text in multiple places. To access it, open the Google Docs document you're working on and look for the "Format" menu at the top of the page. Then, click on the Format Painter button, which looks like a paintbrush. Once you have clicked on this button, you can select the text you'd like to apply the format of to and it will automatically be reformatted. The Format Painter button can also be accessed with a keyboard shortcut: Ctrl + Shift + C. This will both select the Format Painter and apply the selected format.
Using the Format Painter in Google Docs is helpful in situations where you want to add consistent formatting across multiple sections of text. You no longer have to click all the same formatting buttons multiple times, as the Format Painter will remember the format as soon as you apply it.