This is a problem if people with more experience feel a lack of support. Sometimes the more experienced members are expected to provide support, but it is unclear what kind of support is expected from them, so the need is not communicated because expressing uncertainty or insecurity is seen as a weakness, which leaves no room for articulation. If someone informs me about their poor concentration due to fatigue, I will take this into account and their reduced presence will probably not be a problem for me. The main thing is to communicate and not hide from the rest of the team any shortcomings or weaknesses on your part that you are aware of.
