First time mom...Dr Google has me worried 😔

My sweet girl is 7 months. She flaps her hands at the wrist. Not constantly but when she's excited or mad sometimes she will do it randomly. Of course Google says autism... Now I know it's early. Too soon to tell... But I'm wondering if any mom's out here have children on the spectrum that can provide insight.. or does your baby do this? Did your baby do this and they're 'fine' (for lack of better terms)

Thank you in advance for any help, stories, or insights!