I wouldn't worry about it too much. It's the ecosystem and the rest of the frameworks that you'll need to learn, and those will be specific to what you will be trying to do. If you are a proficient c++ programmer you'll have no problem with anything that came after it as those languages usually strive to fix problems in c++.

If you don't know web stuff you should learn web. There was a time I would say every programmer should know C. Today I would say JavaScript.