Europe is not immune.
I almost never hear about it in person. It’s always on some social media site. Often the sites where people think they’re not using normal social media, like Twitter or Reddit.
Ironically, most of them also happen to serve deep fried stuffs which are unhealthy no matter what oil you fry it with.
Have you tried searching Youtube/Twitter in a euro language to check?
But, I cant think of a single time I would had issue to buy animal fat (accross 4 different countries).
I'm not sure of the genesis of it, but it got traction with "health-fluencers" (not to be confused with health experts) and has spread like wildfire despite no real evidence backing it up. Its just a circle of parrots repeating whatever is trending so they can get on the algo train.
Now it's starting to show up in brands and businesses because the mindless algo herd gravitates towards it.
Apparently at heart it has to do with solvents being used to extract the oil, but those solvents are trivially boiled out after processing.
Apparently (per the Wiki) the fad grew after 2020, when Joe Rogan (an American podcaster) interviewed Paul Saladino (an American "carnivore diet" promoter and current food supplement business owner).
The Wiki claims that this fad diet / conspiracy theory is popular on the "political right". Actually, my guess is that a better description would be that this is particularly popular among certain social media "wellness influencers" and "alternative health" promoters. Especially wellness influencers who have been pushing anti-veganism / meat-only / high-protein fad diets in the past.
There seems to be overlap between this movement and anti-vaccination movement promoters (Joseph Mercola, a key figure in the later movement, is now also promoting anti-seed oil activism).
I don't see a whole lot of influencers promoting this yet who are not American. I also don't see this fad outside social media much personally, despite being an American. The primary thing I can think of is that the fast food chain Steak N Shake is heavily touting its "beef tallow fries" on their billboards now.
He is a conspiracist with no medical credeentials, and he believes, without evidence, that seed oils are response for most of the ills of mankind, Tylenol causes autism, SSRI's should not be prescribed, etc. None of his beliefs are mainstream or evidence backed, but he now has a huge megaphone.