\documentclass[tikz,border=6mm]{standalone}
\usepackage{tikzphysics}
\begin{document}
\begin{tikzpicture}[show anchors]
  \node[block] (A) {};
  % Disable an inherited overlay on just this node.
  \node[block,show anchors=false] (B) at (4,0) {};
  \node[above] at (A.north) {With anchors};
  \node[above] at (B.north) {Local override};
\end{tikzpicture}
\end{document}
