Sven Ulreich performance not really quit well with Bayern Munich in this season, have played 9 matches all competition between Bundesliga and UEFA Champion League have conceded 10 goals with 6 goals in domestic league and 4 goals in Champion League. Seems very poor performance and Bayern Munich not try to sign new goals keeper to be competitor for Sven Ulreich. Have rumor to sign David De Gea but Bayern Munich not reach agreement deal actually De Gea have impressive performance with Manchester United and become free agent make Munich doesn't have spent money for transfer fees. Looking on Sven Ulreich performance, its not late for Bayern Munich sign new goal keeper waiting with Manuel Neuer from injury, still have many matches left and David De Gea as free agent can sign anytime without waiting with transfer window opening and already playing for Bayern Munich.
It could be, if previous communication had been established between Bayern and De Gea. However, it seems that an agreement has not been reached. either because of salary, or he is just an option before Neuer returns to the field with Munich. Maybe that's why De Gea is not interested if Bayern offers him a contract. As an established goalkeeper and a big name, I don't think De Gea will be willing to just be a temporary goalkeeper. We can refer to Yann Sommer, even though I think this Swiss goalkeeper's work with Bayern is not that bad. However, he chose to leave, because previously there were rumors that Neuer would return as the main goalkeeper in the 2023/2024 season.
Well, now we are talking from Sven Ulreich's side. As you said, the goalkeeper has conceded 10 goals during Bayern's matches both in the Bundesliga and in the Champions League. However, if we remember the initial match in the German Super Cup, Sven Ulreich also conceded 3 goals, so a total of 13 conceded. I don't want to say that this goalkeeper always performs badly, but in big matches or when he meets a strong enough team, he always concedes. which means, Tuchel has other work to do to find a way to cover his weaknesses in the last line of defense of his team's squad.
For now, there are not many options other than Ulreich to improve his performance. plus, Thucel strengthened his squad's defense line players. if there is no development that leads to good progress.This means that Bayern must find an ideal goalkeeper next January and at the same time add several defenders.Thus, the Bayern Munich squad will be much stronger and very ready to face even tough teams.