How to create explorer, shell (shorter menu at the bottom of Windows)?

Question

C++ / C#

I want to create my own OS (at least try it) and don't know where to start. I decided to start with a strip that shows open and pinned programs (I'm sorry that I can't name this strip exactly, because I don't know.). Tell me how to make it.

Answer 1

Are you collecting money to repair the failure? https://www.youtube.com/watch?v=gJRGTLydN6A

Answer 2

What you want to do is not like the OS, but the desktop environment or
the X Window System window manager

Answer 3

OS creation begins with a bootloader, scheduler, memory manager