Actually, I'll bet it isn't. The Administration rightly doesn't trust Pelosi, and won't give her the chance to expose classified materials that could hurt U.S. intelligence efforts and/or assets. So they were likely provided with some rather general confidential or secret level info, but not the juiciest stuff.
Last time Democrats had a laptop full of sensitive stuff, they lost it, then advertised they'd lost it. (Madeline Albright).
Then HUMINT assets started going dark all over.
I wouldn't trust them with the key to the Coke machine.