In a complex job with a fast pace, a fair amount of tech debt around every edge, a relentless pace of innovation happening, and - yes - growth, there’s too much to be invested in everything. It doesn’t have to matter that much. The parts you really care about, the craft and quality of your work, your relationships, mentoring and growing the people around you, seeing things get better one piece at a time, and a few things - they can matter. But everything can’t. And even those you have to at some very deep level realize don’t matter really.
Stripe doesn’t really exist in this world. It’s a shared fiction to help frame the interactions between you and a few people you actually interact with in a day. The real truth is the only thing that happens in your days is you type on a computer and talk to a few people. It actually doesn’t matter in any meaningful way what you typed or some higher purpose around humbling honesty or exothermic curiosity or PMEs or whatever stories we tell ourselves to create some sort of reality out of the fiction. The only important things you really do is how you shape the lives of the people you interact with, and how you shape your own life.
Burnout is hard. Adopt a daily meditation practice. Let your mind heal by letting go of meaning and practice enjoying the moment you’re in with whomever you’re with, but most especially yourself. The joy will come back faster the faster you let go of things needing to matter or have deeper meaning, especially when those things are a fiction like a company or a career or any of the other small and big lies we’ve been told and we reinforce to ourselves daily. I know I’ve been there man, and I know exactly - exactly - the sensations and experiences you describe. It gets better, but I think once you get there it never totally goes away and it’s easier to slip back.
FWIW I don’t think burnout is the same as depression. I’ve felt both and burnout is different. It’s that loss of ability to engage - which overlaps with depression - but usually doesn’t come with the thoughts of hopeless despair and desire for life to be over. It’s just more of a deadness and inability to initiate what you think you should want to do but can’t, and it pervasively impacts everything.
It gets better.