Having a specific niche or focus for your commentary channel can be important for several reasons:
Having a specific niche or focus can help differentiate your channel from others and make it stand out to potential viewers. It can also help you establish yourself as an authority in a particular area.
When you have a specific niche or focus, you can target your content to a specific audience who is interested in that topic. This can help you attract more engaged and loyal viewers.
Having a specific niche or focus can help you create a consistent theme or style for your content, which can make it easier for you to plan and create new videos.
When you have a specific niche or focus, you can optimize your videos for relevant keywords, which can help your videos rank higher in search results.
It's also important to note that you don't necessarily have to have a specific niche or focus for your commentary channel. Some successful channels cover a wide range of topics and rely on their personality and style to engage viewers. Ultimately, the most important thing is to create content that resonates with your audience and that you enjoy making.