Fitcamx for OE look and simpler installation, though I'm not sure if there's one for 2015 Prius: https://fitcamx.com/collections/toyota/products/fitcamx-dash-cam-for-all-toyota?variant=40634549764268&sca_ref=2842824.mQDF8mYfG6

Other dash cam I would recommend is Viofo A229 Duo or Vantrue E2 for dual channel; Viofo A139 Pro or Vantrue E3 for 3-channel (front, interior, and rear).

A229 Duo: https://www.amazon.com/VIOFO-Buffered-Notification-Detection-Emergency/dp/B0B4N66WPS Vantrue E2: https://www.amazon.com/Vantrue-Buffered-Enhanced-Detection-Capacitor/dp/B0B6B6RQT1