My father just bought a 2024 Austral with power seats.
He has created the profiles for him and his wife but there seems to be no connection to the keys and I can't find anything about it in the manual.
Is it really so that regardless which key you unlock the car with the seats just go back to the settings of whoever used the car latest?
Yes, the profiles are on the car and not the keys. You have to switch the profile when you sit in the car, I am not aware you can allocate the key fobs to a profile.