[Freebytes]

For one thing, they need to hire someone to be "Chief Executive of Naming Things That Make Sense" because they are terrible with naming stuff.

"I got an Xbox One!" "Oh, the first one?" "No, the XBox One not the original XBox 1."

Or, looking at the .NET evolution:

.NET Framework 4.8 .NET Core .NET Core 2 .NET Core 3 .NET 5

There is no .NET Core 4 because people would get confused with .NET Framework 4 which is still getting bug fixes and has support. And they wanted people to move from .NET Framework 4 so they called it .NET 5 instead of .NET Core 5.