I have one parent category underneath, there are two sub categories.

Prent Category:

• Windows: example.com/windows/

Sub Category:

• Multimedia: example.com/windows/multimedia/
• Browsers: example.com/windows/browsers/

I want to display a post sub category on the parent category page example.com/windows/. Like this:

Multimedia post (breadscrumbs: Home> Windows> Multimedia):

• OBS Studio
• Winamp
• Jetaudio
• Windows Media Player
• Audio Player

Browsers post (Breadscrumbs: Home> Windows> Browsers):

• Chrome
• Firefox
• Edge
• Internet Explorer
• Waterfox

How do you make all this? I would really appreciate any help I can get on this.