I don't know about the Nordic but that's why the platformio/ESP32 combination is so popular, mitigating the 'tool-chain' hassle.
As for other vendors, ST and NPX do provide a single install IDE + tools, and I think TI as well.
>> . That leaves CMake, which again is very popular these days, and not difficult to install on any platform at all.
The way you describe it, installation should be a breathe My personal experience is very different.
The RP2040 is brilliant and a great value (e.g. compare to STM32 F4), its' C++ API is excellent (a single level of abstraction 'for adults' that goes directly to the registers, vs other ARM multi level confusing abstractions) and the documentation is detailed and clear. If only the Windows installation would follow that level of product excellence.
Raspberry Pi, since you are recommending third party Windows installation setups, have you consider recommending also VsCode/PlatformIO with the WizIO environment? It's significantly easier to install and actually work (e.g the build/upload/run/debug button).