Open F-Droid, search camera. I see Fossify Camera, Open Camera, Libre Camera, and FreeDCam that basically provide the appeal that this subscription camera app has (AI-less).
Open PlayStore/Alternative, search camera. Holy cow! I'm not even going to name any. There are so many. Not all are AI-less, but there are a plenty.
Also, GCam has a RAW option. So.... out of the box, this new camera app is unnecessary.