I use Pro 2.2.3 with python 3.6 and Spyder
/blogs/dan_patterson/2018/07/01/arcgis-pro-your-conda-environments
/blogs/dan_patterson/2018/01/28/spyder
The caveat... The package manager no longer does anything, you have to do a conda install.
Which means you have to have admin rights of some kind to your computer.
If properly installed, Use file explorer and check for the existence of
C:\...Your Install Folder ...\bin\Python\envs\arcgispro-py3\Lib\site-packages\spyder
Plus some other spyder related folders.
If you want to make shortcuts for your desktop, it can be done..
Spyder isn't the only package that is distributed within Pro. If you want the 2.2 tactic reverted...
https://community.esri.com/ideas/15429
otherwise you will have to continue to fill up your system with clones, if you can get them to work