I just discovered this amazing app! It lets you remove (or just disable) preinstalled apps like Facebook, Netflix, etc. and system apps like samsung knox apps, diagnostic, bixby, and even One UI (but you must have installed other launcher). You can’t brick your device, worst case it falls into a boot loop and after 5 reboots it will factory reset.
Debloating your device will make it faster, more private and more secure (less atack surface).
Can this clean up my Kindle fire tablet from 2017?
If it runs Android and if you can enable usb debugging in developer settings than yes, otherwise no.
For Kindles, the Fire Toolbox will get you sorted if you’re below FireOS 7.3.2.2. https://forum.xda-developers.com/t/windows-linux-tool-fire-toolbox-v32-2.3889604/