I agree that it is wrong to learn something for the sake of padding your resume, I do think there is some value in pytorch and tensorflow, if you need to use it, but tensorflow is owned by google, so unless you directly benefit from google stock it is not worth adding something else from the google ecosystem into you repertoire. I personally had to learn tensorflow and pytorch due to a degree and I hated being forced to use, tensorflow, google collab and kaggle in one class, when another prof was showing us how to escape the google ecosystem using jupyter, etc. that being said I have used plenty of both frameworks not just for a job or because “I needed to use them.” Simply to make things that had little commercial value but value to groups of academic professionals who otherwise would not have access to certain tools and will never get the funding to use these things. And for community projects that I made for fun, I did not even know what I could do until I learned these things. Knowledge pursuit is worth it even when there is no monetary gain.