The only really important and surviving part of COM isn't the "component model idea", but that COM enables versioned interfaces and dynamic linking with a stable ABI for high level languages that usually don't have a stable ABI (like C++) by defining a standard of how high level language concepts can be tunneled through a regular C API.
Which is even overlooked is how similar ideas have been adopted in Apple and Google platforms (XPC, IO/Driver Kit, AIDL/Binder, FIDL/zircon), less so in GNU/Linux as not all distributions rely on D-BUS for similar ideas.
