The Spyder 3.7 application is able to run and render Jupyter notebooks. This can be a necessary use-case for example if you rely on libraries that use a windowing system. You will need to take the following steps:
Install by mamba install -c spyder-ide spyder-notebook in the Spyder Terminal. Please note that usually, the terminal is the last sub-tab in the top right pane of Spyder.
2. Enable the notebook view in the menu: View > Panes > Notebook by checking its tickbox.