Change the Python Version in anaconda

I heard that you are using Python with Anaconda, so let's say you have Anaconda (base).
The following is a command line operation, but it should be possible with the GUI.

• List of Pythons
  ($ is a UNIX OS prompt and does not need to be typed.to distinguish it from the output)

$conda search python
(Partial Excerpt)
python 3.6.7 h0371630_0 pkgs/main           
python 3.6.8 h0371630_0 pkgs/main           
python 3.6.9 h265db76_0 pkgs/main           
python 3.6.10 h0371630_0 pkgs/main           

• Create an environment (name is py369 here (can be another name))

$conda create-npy369 python=3.6.9

• Current environment list (probably something like this)

$conda info-e
# conditions:
#
base*anaconda3
py369 anaconda3/envs/py369

• Usual use

$conda activate py369

(when using base (3.9.7))
$ conda activate base