Modern encryption is not a lock on the front of the drive; it is the data itself, scrambled with a key that never leaves a small secure chip or your head. BitLocker on a business laptop keeps its key in the TPM and releases it only when the machine boots normally, which is why a drive moved to another computer, or a machine with a changed BIOS, asks for the 48-digit recovery key. That key was saved somewhere when BitLocker was turned on: the Microsoft account, a file, a printout, or Active Directory if the machine belongs to an employer. Find it before you post.
FileVault on a Mac works the same way with the account password, and on T2 and Apple silicon Macs the storage is encrypted in hardware even before FileVault is turned on, with the key inside the Secure Enclave. That is why a soldered Mac's board has to work for the data to be reachable at all; there is a separate page on soldered SSDs.
Self-encrypting drives are a third case. Many Samsung, Crucial and Kingston drives encrypt everything in hardware all the time, and by default the key is on the drive and released to anyone who asks. Turn on management, through BitLocker's eDrive mode, Samsung Magician or a corporate tool, and the key is protected by a password that only that management holds. On the bench, the drive is recovered as a drive, through its own controller, and the volume unlocked on the image with whatever you supply. Without the key, what comes back is an image of noise, and we say so first.