I think most people also guessed he will move to Bayern Munich or Real Madrid. However, Florian Wirtz may consider another aspect, he wants to play in a more competitive league and joins a team that is suitable with his play style. Liverpool may be a perfect team that meets his dream for the future career as a footballer. I think it is no problem as long as he joins one of the top teams in the world.
Unexpectedly he chose to join Liverpool instead of choosing Real Madrid or Bayern Munich and he has also said this officially. Now it depends on Leverkusen although the agreement has been met for the player with Liverpool itself. Playing at any club is not a problem, as long as Florian Wirtz can ensure a place as a regular player and Liverpool is also one of the best teams in the Premier League especially so it is a very right decision if he plays at Liverpool.
Usually Real Madrid is the main destination for star players, many star players want to end their careers at the best club, including one of the German football legends, Kroos who ended his career there and became a legend. And even Liverpool player TAA, he was willing to sacrifice his loyalty which had been with Liverpool for 20 years in order to join Real Madrid. But it seems not for Florian Wirtz, he prefers to play in the EPL and join Liverpool to seek new challenges in the most competitive league in the world.
And of course this is quite surprising news, but this is a good enough choice, because he can play in the most prestigious league with a very high salary which will make him one of the highest paid players in the EPL. And besides that Florian Wirtz's transfer to Liverpool also broke the most expensive record in the English league.