I program professionally, and I copy paste all the time. The difference is when I copy paste, its 10-20 lines of code, not a line or two— and I’m not fishing for a solution to the problem. I already have the optimal solution in my head, and I am just searching for the solution I already know. It’s just faster than typing it by hand 🤷🏻
Actually, Windows does allow you to use an alternate “compositor”— a feature which is used quite frequently in the industrial/embedded space. Windows calls them “custom shells”. The default is Explorer, but it can be set to any executable.
https://learn.microsoft.com/en-us/windows/iot/iot-enterprise/customize/shell-launcher