I'm trying to get mamba to run on Spyder 5.5.3 with Python 3.8.10 64-bit | Qt 5.15.2 | PyQt5 5.15.10 | Windows 10 (AMD64)
when I run !mamba install bs4==4.10.0 -y
Note !pip install yfinance==0.1.67 installs successfully.
I've previously followed:
Why did I got an error ModuleNotFoundError: No module named 'distutils'?
which may have changed the error code, but I still gent no good results
I've additionally reset my python interpreter to
C:/Users/#####/AppData/Local/Programs/Python/Python312/python.exe
And yes I have closed and reopened, spyder, reset my kernal, and turned my box on and off again.
How do i get mamba to install?

It appears you don't have mamba installed. In the screenshot you posted, you are attempting to use (uninstalled) mamba to install a package called bs4
Here is mamba's own documentation on how to install mamba