"Unable to access anything after erasing MacBook: I erased my MacBook and can’t access anything now. No Time Machine detected, no disk utility recognized, I’m doomed!"
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Installing macOS on a Mac:
A. "iPad Pro, iPadOS 18":
You've selected iPad as your device for your post. What role does that play in this?
B. "No ?Disk Utility?:
Provide a photo of our screen. IMPORTANT: block out personal information (i.e. names and time), by covering it red-colored rectangles and such, through use of the Phots app.
C. Mount the Drive:
Once in Disk Utility, mount the drive. Boot into: Recovery Mode (Intel or Silicon) . You'll need to click the “Mount’ button to proceed. So, select the drives, and then click "Mount" Try rebooting once more. If of no success, then click unmount button, and then the mount button. Try rebooting once more. It looks dulled-out. So, if you cannot click it, then click the First Aid button to fix this volume.