In addition to listed below performance is another concern - OCSP stapling make TLS handshake large and slower. While it removes need for the client to query OC

In addition to listed below performance is another concern - OCSP stapling make TLS handshake large and slower. While it removes need for the client to query OCSP server itself in practice it such queries happen infrequently, asynchronously and in some may not happen at all. In theory a clients could include Certificate Status Request into the Client Hello only when a local cache expires but IIRC a few years ago Firefox did request OCSP on every TLS handshake making every handshake large if stapling is enabled on the server.