There are more matches than meets the eye to patterns of how the Mossad operates in Europe, and none were discussed in the Netflix episode or in the subreddit so far. I can list what is known about how the agency operates in Europe and ask if anyone has found more evidence from the case to match

  • Almost all exposed Mossad aliases have had extremely generic anglo/american names, even if their identities are from continental Europe. I suspect this is done to protect the potentially ambiguous accent Mossad agents have by creating an identity of ambiguous citizenry/origin to match. This would fit why the alias Jennifer Fairgate was matched with a Belgian identity

  • EU and Mossad intelligence are allied for all intents and purposes, when any uncoordinated Mossad activity in Europe is exposed it's more of a PR scandal than something that European countries act to curb

  • European Mossad aliases are tight. Mossad would definitely know to match the Belgian town, street, and phone number. They would also recruit either recent European immigrants to Israel or Europeans, Jewish or non-Jewish, who sympathize with Israel

  • The European ancestry mentioned was not specified as Jewish or non-Jewish, but many Mossad agents or informants/assets are non Jews, either with heavy sympathy to Israel or who just work for a payoff. She could just as well have been an informant/asset paired with a Mossad handler. As has already been pointed out in the subreddit, Mossad also are known to use female agents as much as males, for what's been called "sexpionage" in the subreddit

  • The Mossad expressly engages in covert diplomacy on Israel's behalf and would be the agency to secure a sensitive diplomatic mission like the Oslo negotiations, if anything related to those negotiations happened in that hotel they would know the hotel inside out

  • Likely Israel would have coordinated those security activities with Norway's security/intelligence authorities during the negotiation, but maybe also engaged in covert activities beyond what was permitted/coordinated during and afterwards

  • Oslo negotiations happened in many rounds and had ups and downs, it started in/around '93-'94 but it wasn't just a one-and-done round of negotiations, it went on for years. Norway was involved in facilitating a safe space for both sides, which means the country accepted the security teams of both sides, and had an interest in letting them operate quietly and with enough independence to trust the host country. This activity could have created a cover for other unrelated Israeli intelligence activity, or JF could have been involved in activity related to the talks. There were many attempts to sabotage the talks, and the foreign PLO operatives who negotiated were very attractive intelligence targets for Israel at the time

  • There could be a legal aspect with Norwegian cooperation: Mossad has gotten in trouble for using fake passports of Allied nations, maybe the Norwegians accepted the security presence and had setup protocols that resulted in the hotel looking the other way on lack of passport, payment, or identity for JF, to avoid the security arrangement creating a crime of fraud in Norway

  • I can see the theories relating to other intelligence services, like Germany or Russia or some ex USSR agency, but Mossad matches the narrative post-operation. If a Mossad agent died abroad, especially if the host country's intelligence service was allied to Israel and informed, basically what happened to JF is what you would imagine to happen: no one would look for them, and the police investigation maybe wouldn't be restricted but only as long as they don't really get too deep

  • If she was a non-allied intelligence service operative, like some rogue Russian, or ex-KGB, or ex-Stasi or something like that there would either A be a much more serious investigation, there would be a completely secret counter intelligence investigation and you would not see a former Norwegian spy on the show, or B it would be a cold war story and those former agents are now old and not bound by any secrecy, and they love exposing everything

A lot of this is speculation but I'll post below some known incidents which seem to support these patterns. Anyone find evidence from this specific case that would match?

https://en.wikipedia.org/wiki/Cheryl_Bentov

https://en.wikipedia.org/wiki/Assassination_of_Mahmoud_Al-Mabhouh

https://en.wikipedia.org/wiki/Erika_Chambers

https://www.timesofisrael.com/what-the-mossads-female-agents-do-and-dont-do-for-the-sake-of-israel/

https://www.bbc.com/news/world-middle-east-38521829

There's also a recent documentary on when and how Oslo negotiations took place, and a more recent ex Mossad tell alls on Netflix and elsewhere that support these