Advanced TinkerTool

>>> TinkerTool’s settings also include the ability to prevent saving to the desktop, stop macOS asking whether to use new disks for backups, Launchpad animations, and the format for screenshots — JPEG is a good choice as shots are usually smaller to store.

As this makes changes to your system, be cautious — so, back up first! To revert things to how they were before you tinkered, click Reset in the section of the same name, then log out and back in again.