UK person here - while I can't speak for the whole of Europe, robocalls and fraudulent calls are a big problem here.
At least for the fraudulent calls, they seem to exclusively come from India, so I presume they mainly target English speaking countries. Typically they claim to be from BT, Microsoft or "your ISP", and try to convince you to install dodgy software on the basis that "your computer has been sending out viruses". This software then messes up your PC or at least makes it look like it, so you shell out some cash for the fraudsters to "fix it". My understanding is that if you fall for this kind of thing, your number also gets passed on or sold to more serious fraudsters.
Robocalls here for the past 5 years or so seem to mainly be from scummy ambulance-chasing solicitors ("we've been notified you were in an accident, contact us now about your claim", that kind of thing).
At least for the fraudulent calls, they seem to exclusively come from India, so I presume they mainly target English speaking countries. Typically they claim to be from BT, Microsoft or "your ISP", and try to convince you to install dodgy software on the basis that "your computer has been sending out viruses". This software then messes up your PC or at least makes it look like it, so you shell out some cash for the fraudsters to "fix it". My understanding is that if you fall for this kind of thing, your number also gets passed on or sold to more serious fraudsters.
Robocalls here for the past 5 years or so seem to mainly be from scummy ambulance-chasing solicitors ("we've been notified you were in an accident, contact us now about your claim", that kind of thing).