Pensions from UK

Welcome Sean

Do you still have a UK bank account?

Why don't you use something like Wise?

You can have your UK State Pension paid directly into your German Bank account, I don't think there is a charge for this as such, the potential downside is that it's paid at the current exchange rate, so its value in Euro may fluctuate from month to month; the Government do claim that the method they use is beneficial because they get a better exchange rate because they buy so much foreign currency.  When I considered this when I retired 2 years ago, the £/€ exchange rate was €1.15 for £1, which is bizarrely what it is today.

My advice is to contact the UK International Pension Centre; the UK Gov website has the details that may help you, and this link will take you straight to it.