My understanding of "virtue signalling" is that it contains the notion that the proclaimed position isn't sincerely held and that it is professed solely as a pe

My understanding of "virtue signalling" is that it contains the notion that the proclaimed position isn't sincerely held and that it is professed solely as a performance for others. "Grandstanding" is being loud and performative about your beliefs, but carries no connotation that the beliefs are not sincere.