do spell scrolls use spell slots

They have a huge spell selection and fast spell slots.

Acolyte: Boost Intelligence, pick up Guidance and Healing Word via Magic Initiate (Cleric), and craft Spell Scrolls with ease.

Each spell slot can only be used once, per long rest, or in the case of Warlocks, once per short rest. Unfortunately, casting spells with higher level spell slots uses the entire slot, you can’t save part of a spell slot for later use.