Nintendo is now offering free repairs to faulty Joy-Cons across Europe, regardless of warranty status.
On a support page on Nintendo's website at United Kingdom, the company says it will repair existing Joy-Cons for free problem even from normal use, in the UK, Switzerland and all of them countries of the European Union, namely in Greece and Cyprus.
It's not unusual as Nintendo has offered free repairs for out-of-warranty Joy-Cons in North America, Latin America and France, so it's just now extended its policy to the countries mentioned above.
However, there is some fine print. As Nintendo says it may "refuse to provide repairs" for stick slippage caused by third-party accessories if it was caused by accidental damage, or if the controller has been "opened, modified or repaired" by anyone not authorized by Nintendo.
It says this offer is only available "until further notice," so it probably won't be around forever.