I am going to mention a few actual art styles in no particular order- here goes-
Abstract, photorealistic, new-realistic, expressionistic, abstract expressionistic, Modernist, romantic, folk, minimalist, post-modern, pop, art nouveau, surrealist, symbolist, dada, precisionist, cubism, portraIture, form art, non-objective, contemporary, fauve, impressionist, post-impressionist, realist, representational...and on and on.
So here is my question? How many of these styles could you recognize if you saw them all together. One or two? Three at the most? Further, could you differentiate between them? Can you identify all these styles if you saw the works? I know, myself, I would have difficulty. In the end, does it really matter from the point of appreciation?
Realistically, you would look at the work and either like it or not - regardless of whether you could identify the style in which it was painted.
You have no knowledge of how it was painted or if it was good, bad or painted with any skill at all. You are then free to respond to it based purely on like or dislike. So, technically, the style is not important. Nor the person or period in which it was painted. You respond to the work only. You are not influenced by any period or artist who created it. Sound good?
So why do we get all caught up with "Labels"? Why does each generation malign the art of the previous generations labels? Well, I can bore you many reasons but my point is - what is important is that the work speaks to you and that you would spend money to own it.
Many, many great artists have passed on, or have their work in private collections, museums, or plaster ceilings and walls. So why is it so expensive and out of reach of the ordinary art lover? I will give you one reason only. They aren't making anymore and more people want it. There are just so many works to go around from the great, dead artists. So the price goes through the roof.
The basic reason we need to know a period or style is purely academic to identify when and why a style originated. For historic purposes and general art knowledge, which I promote. But today artists are mixing and matching styles. Adding some new things leaving out some old things. That is what art does. Reinvents itself every so often. So forget the labels. Appreciate and buy what you like.
There is an artist living now, today, whose work is soaring in price and no one knows who he is. What I mean is no has ever seen him but we know his name and identify his work when we see it? His name is Banksy. That's it. Banksy. Strange isn't it? He goes around, usually at night, clandestinely, stencils his work onto buildings, brick walls, fences, sidewalks; any surface anywhere and everywhere and has reached such fame people are now stealing them. His "style"' if you can call it a style was officially once classified as Graffiti. Now, due to his notoriety, his style has been upgraded to Street Art. And many want it enough to also go out, at night, and steal it. Because of all this, prices for his work is climbing - rapidly. And we still don't know who he is. All true.
The point I am making is do we need labels at all. Why not just create well painted and well presented works without calling it anything related to any style?  For instance have a show and advertise it as the current NO STYLE  ART!
Okay, a better name needs to be imagined, but this new term of Contemporary Art actually encompasses all styles. Artists are now free to paint in any way they like. Style is an attempt but artists today to sell a "new" art to the public. It is a conglomeration of everything we have seen in the past with some new things we haven't seen. The word contemporary covers everything. Every past style lumped together and given a new 'coat of paint' - sorry I couldn't resist the pun.