Should I go with Samsung stock smart TV or streaming box?

Hi everyone! I just bought a new samsung smart TV which has some cool features (xCloud, geforce now [I think] etc.) but I’m afraid of its tracking and, more importantly, about ads. So I was thinking to get a streaming box, but I’m not sure which one… I read about the Apple TV 4K which looks good but it doesn’t have xCloud integrated nor it is possible to use it since the lack of a browser, and I don’t know if I can stream from my PC (either MacBook or linux) to my TV which would be nice

What do I do?