Well then why even argue about usable vs optimal? That's your original point, isn't it?
I'm not arguing. I stated that something being usable doesn't mean it's optimal, because you stated that someone seems to be doing fine with FL Studio.
What is there to even argue about?
You can paddle a boat with a baseball bat, and it's usable, but a paddle is better. That is my point. DAWs are no different.
Pro Tools is - objectively - a more optimal studio recording solution than FL Studio. Can you "do it just fine" with FL Studio? Yes. Sure... However, we know what even its own users have to say about that.
It's really more nuanced than that.
Which is kind of the premise of my initial statement. It's more nuanced than seeing a YouTube video and saying "this guy gets things done just fine using DAW_01."
DAWs are really a set of tools. Some of these tools might be better than others at doing genre specific stuff but I don't agree about these categorical declarations you're making.
How can you say a DAW can have better tools for doing genre specific stuff, but then say that you disagree with what I'm saying? Those mutually exclusive statements.
Live and Bitwig might be better at working with loops and sound design than Cubase. OTOH Cubase's piano roll and arrangement view, that are fundamental to writing any sort of music, are really lightyears ahead.
The disparity between Cubase and Ableton's Piano Rolls are not in the same stratosphere as the disparity with some of the tools that Ableton has for Sound Design and Loop work that eclipse what Cubase has on offer. Most people would say FL Studio has a better Piano Roll than Cubase, but that doesn't change my statement on the matter (upthread).
What Cubase can do in the Piano roll is generally able to be accomplished in Ableton or Bitwig. What they can do with Sound Design is - in some cases - literally undoable in Cubase without a plug-in.
Which was exactly my point. You can do the scoring stuff in FL despite it not being as optimal as Cubase because there are ways to accomplish the things that Cubase does better in FL Studio. But there are pockets of functionality that give massive productivity or functional gains for the production of certain type of music that isn't possible in some DAW. This is what makes them "less optimal" than others for producing those types of music.
I'm not arguing. Disagreeing is not arguing. Offering a different perspective is not arguing.
about popularity which I don't think has a strong relationship with the tools themselves.
Popularity has nothing to do with it. I'm stating that there is a reason why those tools are popular in those markets, and if you ask uses the reasons are often not "popularity" but pockets of functionality in those solutions that are weak - and sometimes nonexistent - in Cubase.
For example, many people in the EDM market do not rate the Sampler [Track 2] in Cubase as highly as that in Ableton, FL or Bitwig - objectively.
There are huge cultural implications. Maybe they don't use Cubase because their friends use Live, or maybe because the UI is aesthetically outdated. I know plenty of Live users who haven't even tried other DAWs. And let's not forget Ableton has invested a ton of money positioning its brand in that particular market.
This has literally nothing to do with what I'm stating. Bandwagoning and peer pressure has nothing to do with my aforementioned statements. No projection, please.