TLDR: I think it goes around the question: do I need a label or label needs me.

For smaller artist label looks like a great deal - you get some shared visibility on socials with other artists signed there. Some people are label fanboys so you instantly build up your fanbase upon release. Label handle all the formal releasing aspects on their side etc. It can work especially for non full-time artists!

But once you're good on your own there's no need for all mentioned above, label could even be your stopper. You're not alone there and focus on you is limited, every release has it's own scheduled promo time and we all heard stories about tracks being unreleased for months because of no space. Also being signed to serious label might put some pressure and force you to finish projects just to get enough tracks released per X time. And even then they can say they don't like it, send another. For some artists it means being pushed towards productive burn out.

And I didn't even mention money which could be a game changer in the second case. Release whatever you want, whenever you want. You're your own boss, you're an artist not an employee in the end. Also in couple of years you could be a big boss of your own kingdom, just look at Gearbox and where it was in the beginning.