The string isn't an official Microsoft product name but a specific "scene" release from the underground world of custom operating system distributions.
: The month the specific ISO was updated with the latest cumulative updates (like KB5015814) available at that time. Integrated Features & Bypasses windows 11 x64 21h2 pro 3in1 oem esd multi7 ju
If you need to bypass hardware requirements (like TPM/CPU checks), it is safer to use the official ISO and modify the installation yourself using well-known scripts (like Rufus's "bypass" feature) rather than trusting a pre-modified ISO like "ju's 3in1." The string isn't an official Microsoft product name