The labels and categorisation of everything can get tiring, and be utterly useless or confusing for anyone unfamiliar with a particular genre (it all sounds the same!), however these can still be handy when you find a particular sound you like, you can use that to discover other bands with similar sounds or style.

As bands in that genre experiment and evolve their sound, they may cross, mix it create all new genres that can lead you down a new list of bands to explore - or perhaps it’s not your flavour so you stick with what you like.

Most hobbies have depth to them like this, I guess music is so variable that we need a thousand ways to describe all the various possibilities.