Are there any special considerations for Google Pixel, Samsung Secure Folder, work profiles, or managed devices?

Yes. These situations really do have special considerations — but usually not because our app behaves “differently” there, rather because the device or profile in question enforces additional security rules.

• Google Pixel: Here, Google security features such as Play Protect or Advanced Protection are often the relevant factor.
• Samsung Secure Folder: A second copy of an app may exist there. That can cause package conflicts even if you do not see a second installation on the normal home screen.
• Work profiles / managed devices: Companies or schools can block installations outside Google Play via policy — sometimes very strictly. 

In short:
Pixel = first check Google protection mechanisms.
Samsung = also check Secure Folder.
Company / school devices = take policies or IT administration into account.