WizTree scans my entire drive

It doesn’t, really. It’s already indexed. It’s a feature of the NTFS file system. It’s the same way Everything Search can find files almost instantly, and what Windows Search used back when it worked properly in the Windows XP days.

Why Microsoft stopped using that and switched to whatever the current useless search function uses escapes comprehension, though it probably has something to do with them wanting to shove Bing results and other spam in there.