You'll probably hear the phrase (It doesn't matter what it sounds like in solo, it matters what it sounds like in the mix) just as often as (If it sounds good, it is good)
My point being you need to make something sound (not good). So you'll fight your instincts... how (not good) do I make this track? and what of the million different processes do I choose from to make it sound not good so it sounds good?
It's pretty insulting to have somebody who dedicates their life to studying EQ/Compression and mixing in general ask a question that on the outside seems simple but is far from it, to then have some newbie clueless kid (I'm not talking about you, just in general!) come along and say (just use your ears, if it sounds good it is good). That advice has never been helpful, it never will be, it makes everyone look bad and it's damaging to the art.
EQ is needed to fit things together no matter how perfectly you record something. Pro Mixing Engineers are receiving tracks from Pro Recording Engineers and I still see a fair bit of EQ. The better you are as a mixing engineer the less EQ is needed because you'll make small but incredibly powerful moves.
My mind got blown when I realised how powerful a 1db boost at 300 hz could be, De-harshes, adds power, cleans up the subs, gives a ton of space to a vocal and adds volume more than if you were to boost anywhere else. Inexperienced me was cutting a little 3k to deharsh and give space, then cutting some 7k because of ugly piercing freqs, then scooping some ugly mids out then reducing the bass, all when I could have just done a 1db boost at 300.......
So it doesn't mean much to me when I see pros not using many plugins, I've learned the hard way how a small but simple move can radically alter things all the way down the line. All of their processing is done with a strong purpose and they are good enough to know when something is not needed because they understand the frequencies on an intimate level. I'm getting impatient on waiting for Kush's new video on this. He gets it! He's really helping us all out here.
It's not a dig, I'm just forewarning people that when you start dishing out that kind of advice you're gonna lose work, respect and credibility very rapidly. Especially these days.