Another type of shut off valve that it is important to be aware of is the PEX manifold system.
Most newer homes (2010+) are plumbed with a type of flexible plastic pipe called PEX. One of the ways this piping is installed is by running a bunch of smaller pipes to the fixtures throughout the home from a single point called a manifold. Think about it like an electrical breaker panel for your water system. At this one central point there are a bunch of smaller shut off valves that you can operate to shut off the water to every bathroom/fixture in the house.
These can be a little touchy when they haven’t been used for a long time. Their all-plastic and o-ring construction doesn’t corrode, but o-rings have a tendency to become stiff and leaky over time. If these individual valves start to leak, they can often be rebuilt with new replacement parts from the manufacturer. The most common one in use around here is manufactured by Viega.