Beast from the East
Indeed, wasn't intending to single out the UK, just that the poster is resident in the UK. Many EU nations now require a negative test result before travel for residents from any country with over 25/100,000 and there are moves to try and standardize this as a standard across the EU. Bar the Scandanavian and Baltic bubble, there are now very few countries indeed that remain below the threshold.
Numbers also climbing in Lithuania, but still well below the 25 count, so travel in the EU is still permitted without restriction on arrival, but do need to isolate on return to Lithuania from virtually everywhere, and test