You should REALLY trust the author of these scripts before running them. Or you will be getting pwned.
These scripts sometimes also subtly break stuff. That makes debugging hard in the future.
These scripts might also break security model of windows.
These scripts might also affect performance.
Most people only use these scripts for bs-free windows experience. A much better alternative might be to use group policy editor available in Enterprise, Pro and Education.
You can change stuff related to local search, update frequency, disabling AI features etc from a single place.