I can’t speak for the rest of Europe. It’s a big place you know.
When people in one market talk about their fixed rate mortgages adjusting rates, it sounds strange to people familiar with other markets, just reinforcing the “real estate is local” adage.
In France, for example, the standard mortgage is fixed rate, for the whole duration of the loan, which is usually 20 to 25 years.
https://www.bankofengland.co.uk/bank-overground/2020/why-are...
(In 2020, more than half of new mortgages were fixed for 5 years or more.)