Every third post on every production site is about color grading these days. It's the hot new thing that everyone seems to believe is the most important part of production for some god-forsaken reason. Underappreciated? It's basically dominating the industry at this point because everyone is under the impression it is the pivotal step in filmmaking.
It's the smartest model for having professional tools available with regular, high quality updates. It works incredibly well. Idk why people are still crying about it. It works better than the single purchase method ever did with Avid.
Editing in Resolve is nowhere near editing in Premiere. Obviously it has better color tools. But it's still slow, clunky, non-intuitive, and not particularly satisfying.
The uproar over the subscription model is still surprisingly controversial because it makes so much sense and is a minor cost relative to the benefits of a professional tool yet people still roar to the high heavens that it's some sort of dark sin.
Dog collar with gaff/electrical/painters/duct tape
Here's the thing. Don't think about this yet. If this is your first camera, and you aren't sure what is going into making those decisions, you shouldn't be doing it yet. What the first commenter described is probably one good way to get one particular look out of something, sure. It doesn't tell you WHY you should be doing that. It doesn't tell you what you gain or lose doing it that way. It doesn't tell you what difficulties it adds to shoot flat/log and deal with it after.
If this is your first camera, spend some time just shooting with the standard profile. Shoot a bunch of things, then take it into your NLE and say "What don't I like about this?" Then figure out what you can change to remove those things. Then do it again. And again and again until you start realizing what the purpose behind all this is.
I say this because, please don't take this the wrong way, there's a decent chance that you're going to end up with something that could be done in camera, despite your "flexibility in post". All the flexibility in the world is worthless if you don't know specifically what you're after, and chances are it's not going to be gotten with color grading. If you saw something you really liked, chances are it's the lighting, or blocking, or camera movement, or editing that achieved it. Color grading isn't going to help with any of that. Knowing the "how" without the "why" is only going to set you back creatively.
X is still fairly unpopular among editors. It has gained popularity since it was released. X burned a lot of people because it was not a pro application by any means when it first came out. It is still, I think, borderline. I've never worked with a major house that used it for anything other than small projects, and generally because the editor wanted to monkey with it.
It's a fine application for hobbyists. But it's still the least popular of the 3 major NLE's in the pro world.