The actuated rear hatch on my 2013 Lexus RX350 required repair. It fell onto my head numerous times, and the motor struggled to open and close the door smoothly. I purchased two new air struts and easily installed them myself with only 10 minutes of effort. See Amazon link below for the parts I purchased. The DIY fix was straightforward and required only grease and a flathead screwdriver. The same procedure might apply to many other vehicles.
Air struts (used in the video):
https://amzn.to/3uDt4WD
Vehicle repair manual: https://tidd.ly/4gPPGGJ
Grease:
https://amzn.to/3wseX6W
Generic air struts (confirm fit for your vehicle):
https://amzn.to/3J4SZdr
Attach phone holder to windshield with magnet (NEOS):
https://amzn.to/3yMJfCs