Disagree over opinion is acceptable, but facts is a bit daft IMHO.
The term that describes the combined navigation satellite systems from different countries is indeed Global Navigation Satellite System (GNSS) .
GNSS encompasses various national systems, including:
• GPS (Global Positioning System): United States
• GLONASS (Global Navigation Satellite System): Russia
• Galileo: European Union
• BeiDou: China
• IRNSS (Indian Regional Navigation Satellite System): India
• QZSS (Quasi-Zenith Satellite System): Japan
Recently and more commonly, the term has evolved to PNT (Positioning, Navigation and Timing).
PNT encompasses not only GNSS but also other positioning, navigation, and timing technologies, such as:
• Terrestrial navigation systems
• Cellular networks
• Wi-Fi
• Inertial navigation systems
• Atomic clocks
PNT is a more comprehensive term that covers the broader range of technologies used for positioning, navigation, and timing.