While we try to help with questions that use libraries and models built on top of PyTorch when people have errors that ultimately come down how they use PyTorch, and Keras is bound to be a fine library, it would seem that most people here are not using it as much.
I would suggest using Keras’ suggested support venues 29 because ultimately there you will find people using it every day.
That said, do check out fast.ai 2 if you want a PyTorch-based library that roughly has similar intentions as Keras.
Best regards
Thomas