configuring fixed ip address for globalprotect client is not as strightforward as documentation says. on windows there is no PrefferedIP, there is something similar to PreferredIP_acc89d3b1a6892f5cf1c75c1be67b39 - suffix is random and can change with time. macos "registry" is located in /Library/Preferences, search for com.paloaltonetworks.GlobalProtect.settings.plist file. you'll find <key>PreferredIP_3bd959561172ae7b6e87801ffdd45e75</key> inside and it's value <string>10.200.200.150</string>. i guess linux client store settings in a similar way, i would start searching /etc.
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