I haven't ready any public writeups from emulator developers, no games have been released with it but Zelda BOtW2 is expected to have it. Some guesses are that it will be based on measuring specific call execution times.

The switch is already weak in terms of hardware so I am not sure how many games will end up integrating it. Regardless of what Denuvo says in marketing, it will slow down games. Nintendo has since tried to distance itself from it, but Denuvo has said they have entered NDA agreements with large publishers already. Denuvo would also need low level access and approval from Nintendo, so I am not sure why Nintendo is pretending to separate itself from this effort.