there absolutely are, without a gimbal, by using a somewhat large sensor and movement/orientation/inertia sensor ICs to perform a software crop and stabilizatio

there absolutely are, without a gimbal, by using a somewhat large sensor and movement/orientation/inertia sensor ICs to perform a software crop and stabilization as the video is recorded. such as the hypersmooth 2.0 or hypersmooth 3.0 on a gopro hero9 black/hero10 etc. but those are considerably more expensive cameras. search youtube for gopro hypersmooth 3.0 and you'll see some examples of the same gopro with and without hypersmooth turned on.