Has an Euros game ever ended 4-2?
It has. 4-2 has been a Euros final 4 times in 388 games. The first was Germany beat Yugoslavia on June 17, 1976; the latest was Germany beat Portugal on June 19, 2021.
That makes 4-2 the 12th most common final score out of 20 that have ever occurred in Euros. One point away, 5-2 has happened 1 times and 4-3 has happened 1 times. At one point the score disappeared for 28 years, between 1976 and 2004.