I have a similar problem and my Pi architecture is aarch64, python version is 3.9.2. I tried to install
$ pip install tensorflow-2.8.0-cp39-none-linux_aarch64.whl
and the error I got was
ERROR: tensorflow-2.8.0-cp39-none-linux_aarch64.whl is not a supported wheel on this platform. Please, is there any idea on what I should do?