This isn’t something you can change on your own. Devices will be automatically marked “placeholder“ once they are using the new smartthings architecture.
To get it to use the new smartthings architecture, you can either just wait because Samsung is planning to automatically transition most devices. Or if you are going to use custom code, you add a custom “edge driver“ to your hub and then remove and re-add the device and it will pick up the placeholder Label.
FAQ: Why does the IDE list “placeholder” for my device? Can I change that?
If you want more details about all this, here’s the long community FAQ:
FAQ: I have no idea what Edge is. Is that a new developer tool? (2022)