Rüdiger Vogler is okay but not always strong

Rüdiger Vogler as Patient at the operation in No (2021) made me pay attention more than I expected. I can understand what the actor wants to do, but not every scene is strong. The performance is okay for the movie, but sometimes it feels a little flat. There are good moments, especially when the scene is quiet. Some parts are good, but other parts feel normal and not very fresh. Maybe other people will like it more, but this is my feeling.