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Aerons are not just a meme, I used two different models at work (couldn't tell you which) and they are bloody comfortable over the 8-16 hours I spend in them on working days. They are quite adjustable, though, and you either need an ergenomics expert on call to make sure you set it up for you or spend the some time to learn why what seems immediately most comfortable might not be the best options long term. They are designed to interact with the desk you sit at via the arm rests as well. That my sound daunting, but some of it is wankery if you don't literally spend all day in one. They are pretty solid in terms of build quality and the netting "upholstery" means you don't sweat or overheat unless you add extra insulation while also making up for minor misadjustment problems by moulding slightly to your body. The downside is that they need some setup and, more importantly, they require you to maintain (chair supported) decent posture.
It's definitely a solid choice, but it's not the only choice out there. If budget doesn't matter "Ergohuman" has much the same rep and has even more tunable knobs and almost always feature a head rest which gives you more options for relaxed positions. But on the flip side, the more tunable knobs the more you need to know about why and how to adjust them to get the most out of them.
If you really do spend most of your days in a chair in front of a screen and you don't have someone to tell you how that works best, then I'd thoroughly recommend learning a bit about ergonomics (maybe harder than it sounds, there's a lot of snake oil out there especially around "gaming chairs") and then pick one of those two that fits you.