I'll state my experience for one job in the UK. The company employs more than 150,000 employees worldwide. Known Pharma company of Europe in Top 5
I worked there for almost 2 years, and at that time the UK was still part of Europe.
I emailed HR, where HR replied back saying following that in line with Data Protection Guidelines (EU) they cannot issue subjective content like roles and responsibilities on Letterhead. They could be issued in the case of criminality or security concerns only.She also told that issuing such letters make them non-compliant to EU Guidelines
On Letterhead she mentioned my annual salary, benefits offered by the company in the UK, hours worked per week, positions held during two years and she was kind enough to mention on letter head that in line with EU Data Protection Guidelines, this is company policy to issue reference letters in the standard format.
I got a non-notarized brief reference letter on plain paper from Ex-Manager from the UK, along with her business card and got it couriered to me in India.
Now I attached Payslips, Contract Letter, Promotion Letter, HM Revenues (Income Tax) Documents, Awards Received during my Tenure in this Company and Research Publications made by me which were presented in American and European Conferences with Links as publications in ATS and ERS stay forever along with email from HR, Reference Letter from HR with information stated above but without Roles and Responsibilities and Non-Notarized Letter from Ex-Manager.
So I would suggest to even get email from HR where it states this is company policy and/or country guidelines to give standard reference letters too. I guess you will be fine.
By the way I got PPR on April 13