Xabi Alonso should simply seek for new managerial position because his team flops in big games and in tougher positions this season. You do think he's happy with the club's stats? Absolutely not because they've been knocked out of the main leagues and unable to reach out for a trophy. Leverkusen are not in prime form this season. It'd shown how they're unable to match the energic strength with Bayern Munich this season. Alot have happen and we've watch the epic performance of these teams, their incapacity to reach maximum level and definitely not exploring in all phases is simply not understandable.
You can remember how Bayer played before Alonso came and what places Bayer occupied in the Bundesliga then in the season 22/23 it was sixth place, in the season 21/22 it was third place and in the season 20/21 again sixth place. The last time Bayer were champions before Alonso was in 2010\2011. So Alonsa has injected new life into the team and Bayer is now considered one of the strongest teams not only in Germany, but also in Europe.
Today's game with Bochum and if Bayer wins, they will be only 3 points behind Bayern Munich.
Leverkusen's appearance was very different before and after Alanso coached Leverkusen. Alanso managed to bring Leverkusen to become the Bundesliga champion for the first time without even losing. So it is true as you said Alanso's presence in Leverkusen has changed a lot starting from the game and the character of the game, even though they failed to defend the title this season does not mean Alanso failed in Leverkusen.
If previously there was news that this was Alanso's last season with Leverkusen, but according to the news circulating now Xabi Alonso will announce in his press conference that he will stay (at least) one more year in Leverkusen. So there is a possibility that his contract will be extended until 2026, this proves that Leverkusen still trusts Alanso to compete next season. Against Bochum, of course Leverkusen will take this opportunity to continue to stick to Bayer Munich at the top of the standings, especially since they are facing an easy opponent.