Their website https://www.paloaltonetworks.com
Do you need some feature that only works with the official client? If not, I use net-vpn/openconnect to connect to my company's PAN VPN. The advantage is that it's integrated with NetworkManager and generaly plays nicer with the rest of the system than the official client.
Thanks, trying right now to connect with openconnect, I described my problem here https://gitlab.com/openconnect/openconnect/-/issues/446 Would be very grateful if you can help.
A link to the front page of their website is not terribly helpful to anyone who would possibly work on this.
Finally Openconnect works for me! Strange, looks like no download link on official website https://docs.paloaltonetworks.com/globalprotect/5-2/globalprotect-app-user-guide/globalprotect-app-for-linux/download-and-install-the-globalprotect-app-for-linux