Most Windows laptops of the last decade, and every Mac to 2017, have a drive that comes out: a 2.5-inch SATA drive behind a panel, or an M.2 stick under one screw. Business machines from Dell, HP and Lenovo nearly always do; so do most Surface Pro and Surface Laptop models since 2020, which carry a small M.2 2230 drive under a magnetic cover. If yours is one of these, the drive is the only thing we need. Any repairer will take it out in five minutes, or the form can tell you where the screws are.
MacBooks since 2016, Surface models before about 2020, Chromebooks and a good many thin Windows laptops have their storage soldered to the logic board. Those come whole. On a T2 or Apple silicon Mac the board has to be made to run for the data to unlock at all; on a Windows machine the soldered flash can usually be read directly if the board is dead. The soldered SSD page says which is which.
One thing to do before anything else: find the encryption key. A Windows laptop signed into a Microsoft account has very often had device encryption turned on quietly at setup, and its drive, moved to another machine, will ask for a 48-digit recovery key that lives in that account under Devices. A Mac with FileVault needs the account password. Neither is a problem if you have it. Both are the end of the road if you do not, and no laboratory can change that.