The built-in macOS app switcher is great if all you use are one-window applications. But you probably have many windows open in many apps, possibly with many tabs, and navigating them all is a pain. Enter Witch, with which you can switch everything.
anchor apple generic and identifier "com.manytricks.Witch" and (certificate leaf[field.1.2.840.113635.100.6.1.9] /* exists */ or certificate 1[field.1.2.840.113635.100.6.2.6] /* exists */ and certificate leaf[field.1.2.840.113635.100.6.1.13] /* exists */ and certificate leaf[subject.OU] = METK467GW2)