You might want to run through the Pilot Institute's free online "Deep Dive" course on the Air 3S. It's a very good way to get familiar with the drone and learn the features.
https://pilotinstitute.com/course/dji-air-3s-deep-dive/
After lusting for a more-than-average camera drone for at least 7 years, the approach of the December 23rd 'Date of Reckoning' for DJI influenced me enough to order an Air3S Fly More Combo. I ordered it from a Japanese-based seller and had it...
All due respect, but reliance upon RTH for landing your done is a serious failure upon your part. You need to learn how to fly back and manually land your drone without activating RTH. It's a beginner feature rarely ever used by any experienced...