Fuel Natural 95 E10 for 4age insted of E5

[Ryo]

Hello
In my country (Slovakia) starting from january 2020 was announced that old type natural 95 fuel with marking E5 definitive ends it will be available only type E10 which contains more ethanol should i worry that in time it will damage the engine internals or rubber parts in fuel delivery lines? How is your experience and what fuel do you use in your country. I heard in EU is common to use E10 marked fuel but is supposed to be used for new cars. I searched the forum but was unable to find if there is such thread opened for this topic.