As of now only the Kivy nightly wheels
are compatible with the latest version of Python.
To install the nightly wheels run each of these commands:
python -m pip install kivy --pre --no-deps --index-url https://kivy.org/downloads/simple/
python -m pip install kivy[base] --pre --extra-index-url https://kivy.org/downloads/simple/
Installing Kivy: https://kivy.org/doc/stable/gettingstarted/installation.html#install-kivy
Can't Install Latest Version of Kivy using Python 3.10.0: kivy/kivy#7654