Unable to find the Designer View in a UWP application

Hello everyone,

it seems like the Designer View to actually edit the layout of my UWP application graphically is missing. Yes, I checked if it is enabled in File -> Settings -> Tools -> Windows Forms Designer and it was already enabled by default.

After reading a related post, I checked if the rider.enable.designer.winForms setting is enabled in Help -> Find Actions -> Registry and it is indeed. Though I'm pretty sure these two settings are directly related, I checked it nonetheless.

The minimum Windows requirement for my UWP project is the Windows 10 Fall Creators Update (10.0.16299.0), but it didn't work with a Windows 10 minimum requirement either, which is the oldest version you can select. The project and solution are in the same directory. I am using Rider 2021.1.2.

Here is a screenshot of the list of windows that are available:

I would be happy if someone could help me with this and eventually give me some tips for UWP development with Rider and UWP development in general. Thank you very much!