How do I find my other iPhone

Go to iCloud.com/find or use the FindMy app on your work phone to log into your personal iCloud account (help a friend feature).

Your phone must have FindMy enabled, it must be powered, and it must be connected to a network to be found.

On the work phone open Find My.

Ah, that’s not what you said in your original post:

misplaced personal phone

But it doesn’t matter; use Find My on the phone that is not misplaced to track the misplaced phone, or log in to https://icloud.com/find using the Apple ID of the misplaced phone, whichever it is.

You said misplaced personal phone. Regardless, doesn't change anything. log into the FindMy app