Michael MJD: Retro tech youtuber with a very calming voice and video style. Often installs operating systems on unusual devices.

Techmoan: Tech youtuber focused on old audio equipment.

Ashens: British Youtuber, who has been reviewing mostly poundshop tat and occasionally other random items in front of a brown sofa since 2006.

Geowizard: British Youtuber who does online Geography quizzes like Geoguessr and sometimes goes on adventures. The former part is probably more relevant to your question, though even his adventures have a nice, calm narration and music (that he wrote himself).

The Trek Planner: Finds interesting spots on Google Earth and hikes there, usually in the deserts of the Western US. Videos are usually more focused on the journey than the destination, so there will always be lots of nice views of nature. Honorable mention also to Desert Drifter, who did similar videos but unfortunately passed away recently.

Assuming the daughter is an adult: I’d talk to her about it but otherwise not get involved. It’s up to her to choose her relationships. There are also people who aren’t together anymore even though they’re still married, or are in an open relationship, so it’s not something to automatically condemn.

If you live in the EU, you could try a GDPR request to delete your account and then create a new one.