The remains a high-volume search term for a reason: it represents the final polished release of a mature, bug-free branch. It offers rock-solid performance for legacy systems (Windows 7/8.1, older macOS) and for organizations that have not yet upgraded their Palo Alto firewalls.
Typically, GlobalProtect agents are not available via public direct download links from Palo Alto Networks for end-users. You generally obtain them through: