Indeed! Software development is both knowledge, and creative work, but the industry treats us like replaceable cogs in an assembly line, which is NOT knowledge or creative work. We even utilize work tracking systems made FOR assembly line work, like kanban.
We KNOW that using your brain like that leads to mental exhaustion, in exactly the same way we know a tradey kneeling while they do carpet all workweek will have fucked up knees in twenty years. We also have clear scientific study that you physically cannot do knowledge work effectively for 40 hours a week, and actually start LOSING productive knowledge work performance after about 36 hours a week.
The way that I describe it to people is imagine you really like Sudoku puzzles, but now you have been contracted to do the hardest possible Sudoku puzzles you are capable of for 40 hours a week. Sure monday might be a blast, but by thursday your brain HURTS, and is physically tired. The human brain chews through A LOT of energy, and puts out A LOT of metabolites while doing hard thinking stuff, like knowledge work. Then you take your weekend where you desperately try and catch up on the household stuff you've been putting off because you get off work and FEEL dumb, because your brain desperately wants to turn off, so you scramble to get some of it done, and then it's monday again.
Meanwhile, the whole time that you're struggling with using something that isn't meant to be used 8 straight hours a day (unlike our heart or leg muscles which ARE optimized around constant usage), you're basically being gaslit by the whole system. "This task is a medium" except it wasn't groomed properly and of course there's twice as much work, but you aren't allowed to modify the ticket or change how you are working on things because a guy who spends all day putting numbers into a premade Excel sheet tells you that your "predictability" is going down, or that your "throughput" is inconsistent, as if there even SHOULD be consistency in a software project that does very different things and systems in different stages of the project, and after you spent 16 years learning ironclad math rules and 4 years learning Computer Science at your school of choice, you go into the field, and find that ANY bug is possible in modern computing, and every bug WILL be insane and flow through thirteen different abstraction layers and whisper demonic thoughts into your ear and now you get fucking PTSD whenever your mom asks you "how could this bug happen in my iPhone" and you're like "hey man IDK probably the bluetooth stack corrupted the vibration motor controller and now your phone will play only country music whenever you get a text from your brother in law", or your main app crashes because there's a damn bug in uWSGI where if you use any other C based code, it will inevitably fucking SEGFAULT because uWSGI goes out of it's way to dealloc during shutdown and manages to dealloc things that don't belong to it and the group who builds uWSGI has ignored the bug for a decade, and nobody fucking gets it because in other knowledge based work fields, nobody scoffs when you say "no you cannot use chemistry to turn lead into gold", and you don't find that occasionally your simple adding NaOH to water actually results in an acidic solution somehow because a completely disconnected reaction happened in the other room where someone used the wrong brand of sulphuric acid in a reaction and now the entire lab is cursed...
Fuck I still have like 35 more years of this until I can retire and I'm borderline useless at anything else