ST is in the middle of a migration to a new architecture where the drivers no longer run in the cloud. Read more about it here. FAQ: I have no idea what Edge is. Is that a new developer tool? (2022)
Placeholder is an indication in the old IDE that your device(s) have migrated from a DTH to an Edge driver.
You can find out more about accessing ST info like device ID and types here Life after the IDE: Questions and Answers