Leave insider program with Windows Installation Asistant

If I want to leave the insider program, can I download the Windows Installation Assistant for 25H2, run it and get the clean windows install without using any USBs or ISOs?? I don’t care about keeping my files, I just want to leave the program without having to wait for the next major update or using the media creation tool, but I don’t know if it’s save to run the installation assistant for a previous version of windows.