0.1uF (100nF) capacitors may not necessarily be suitable for filtering circuits

Filter capacitors play a very important role in switching power supplies, and how to correctly select filter capacitors, especially the selection of output filter capacitors, is a concern for every engineering and technical personnel. On the power filtering circuit, we can see various capacitors with different capacitance values, such as 100uF, 10uF, 100nF, 10nF, etc. How are these parameters determined? In the future, don't see capacitors with 0.1uF capacitance placed in everything. In some high-speed systems, these 0.1uF capacitors simply won't work.