Here in NL, however, it does seem like scammers are occasionally taking advantage of the comparatively high English proficiency and are trying to scam people in English - this one was doing the rounds for a while: https://www.fraudehelpdesk.nl/alert/engels-telefoontje-namen...
I'm confused by this. Huge parts of Germany (and maybe Greece) are English speaking. In Berlin you hear more English than German being spoken on the street. Denmark and Holland seem to have high numbers of English speakers as well.
I think several other countries conduct a lot of business in English, but I haven't spent enough time in Europe to know this for sure.
No one in the EU (outside UK) will receive a call in English and think this is legitimate
In the US if you call any company you would expect someone with an accent