FL Studio without VSTs is like a guitar without strings. Most third-party plugins (Serum, Kontakt, Omnisphere) require registry entries and activation files stored deep within the host OS. Even if FL Studio runs from a USB drive, your . You would need to carry an entire portable VST folder, and even then, many premium synths will refuse to authorize on a new machine.
Most "portable" versions found online are unofficial, modified copies (often called "repacks" or "cracks"). Using these comes with significant risks: Security Hazards
