The claim is not valid as a technical review because it’s grammatically broken and mixes terms. Windows 11 can mount ISOs fine. For persistent, unattended mounting to a specific virtual drive, you need third-party software – but that’s true for Windows 10 too, not a Windows 11 regression.
When you encounter the error where Windows 11 cannot connect an unattended.iso windows 11 cannot connect unattendediso to cd dvd 2 better
Verify VM state
to create a bootable USB drive. This bypasses the need for a virtual CD/DVD drive entirely. Apple Silicon (M1/M2) Fix Report: Windows 11 — "Cannot connect UnattendISO to