They chart nowhere. That’s not the point. Noticing that key changes are still popular at what is one of the most popular song contest in the world is however very relevant to a discussion about the public taste.
They most certainly chart in Sweden, here's the chart from May 14th (the day after the the Eurovision finals) [1]. This is "Svensktoppen", a very long-running list of top-played Swedish songs in Swedish radio. Off the top of my head, positions 1, 3, 4 and 5 were all candidates for Eurovision (and the song in position #3 was the one that competed in Eurovision).
In Swedish, this key change is generally called a "schlagerhöjning", where "schlager" [2] is the broad genre word for the type of songs that compete in the Eurovision. The term is old, obviously there's a rather wide genre spread these days but it used to be more same-same.
Edit: added a "Swedish" above, I did not realize that the chart only lists Swedish music, saw another comment mention this. Very weird of me.
In Swedish, this key change is generally called a "schlagerhöjning", where "schlager" [2] is the broad genre word for the type of songs that compete in the Eurovision. The term is old, obviously there's a rather wide genre spread these days but it used to be more same-same.
Edit: added a "Swedish" above, I did not realize that the chart only lists Swedish music, saw another comment mention this. Very weird of me.
[1]: https://sverigesradio.se/topplista.aspx?programid=2023&date=...
[2]: https://en.wikipedia.org/wiki/Schlager_music