One person is an expert at doing one thing and the other can do more than one. I’m the latter. Not calling myself an expert but I’m good at several things. Knowing more than one thing is an advantage in the work place. Especially in creative work.
Trying not to be over-confident but I’m good at both writing fiction, photographing, videography and editing. Those are crafts you learn by doing. Anyone can become good at them but it takes years of practise. It also helps when you study those kinds of things. Knowing the basics is a good start.
It’s both good to be recognised by being an expert in one thing and being good at many things. Knowing different things well let’s you have variations. I would become bored if I only were good in one thing. If I had to choose one expertise, it would be photography. There will always be someone who is better than me. But at least I know things, not everyone does. That’s something to be proud of.