Reinstall miniforge3 with Python 3.9 version.
Command-
conda create --prefix ./env python=3.8
conda activate ./env
2.conda install -c apple tensorflow-deps.
3.python -m pip install tensorflow-macos==2.9
4.python -m pip install tensorflow-metal==0.5.0
5. Run sample script available on https://developer.apple.com/metal/tensorflow-plugin/
This worked for me.
Check versions properly.