They increased some 30% from 2021 to 2022. Not sure if they've gone up any since then.
https://www.tsp.gov/tsp-basics/expenses-and-fees/
Anything below .1% is not worth getting worked up over, but it blows my mind how TSP is increasing fees when everywhere else is lowering them. Other brokers, Fidelity and Schwab, rely heavily on their robo advisory services. Does TSP live up to their fees for the service it provides? I don't think so.
It could be that they are not worried, since they have a captive audience for a good 20 - 30 years with new recruits every day. For that captive audience, there is little competition.
Waltj