I worry that Lenovo or MS may gain access to my fingerprint information. I recall that I asked similar question about iOS devices here and forum members cited a post from Apple that such fingerprint info are stored in an encrypted chip inside the iPhone/iPad so Apple has no access to our fingerprint data. Even Apple or bad guys got our iPhone/iPad, they cannot access our fingerprint data.
That is pretty much true of any company, though it doesn't keep people out of your phones. The biometric info is stored on a chip that processes the security clearance without even passing it to the OS.
iPhones with fingerprint readers have been hacked very easily. FaceID has also been hacked, but not as easy as fingerprint ID. I don't believe Apple is any better or any worse than Lenovo when it comes to this kind of thing. Common sense on the part of the device owner is still required.
That said, the biggest target from where fingerprints might be hacked is probably the government. The FBI, for example, has a database of over 100M fingerprints, that include citizens and non-citizens. The Department of Defense also maintains a database for military personnel. A breach to one of those is probably a far bigger concern than someone trying to get your fingerprint ID from a single laptop.
Here is a little more info on the fingerprint technology Lenovo uses...