It's possible that new lawsuits have emerged since then.
Frivolous lawsuits can vary in nature, and opinions on what constitutes a frivolous lawsuit can differ. Lawsuits that are generally considered frivolous are those that lack legal merit or are filed for frivolous or unreasonable reasons. However, determining the frivolous nature of a lawsuit often requires a legal analysis and a judgment by a court.
If there are any specific notable frivolous lawsuits that have gained public attention or media coverage since my last knowledge update, I'm unable to provide information about them. It's recommended to refer to reliable news sources or legal databases to find information about recent lawsuits or notable cases.