no paywall: https://www.wsj.com/tech/biotech/ph-d-s-cant-find-work-as-bo...

This link shows me the paywall, I have not investigated why.

More likely than not you have some sort of VPN/go incognito/ad blocker/etc. installed. 99+% of the time, that's the reason for being unable to open a gift link such as those provided by the Wall Street Journal.

Alternatively, it may be because you're located outside the U.S.

Screenshot just now after I opened this link [I am in the U.S.]: https://imgur.com/a/jXXilIA

Thanks for the information, I have observed this in some of those links before (others worked, I do not know what the diffference is) and it might be the case. I am indeed outside the U.S.A.