Because it’s had stellar Wayland streaming support (with audio) for somewhere around 2 years at this point, is still way better in that regard than native Discord, and has a thriving plugin suite that lets you enjoy features the native app will never allow.
I had a similar experience! When I first started questioning, I ended up concluding I was agender, but mostly because the feminine parts of me had been deeply repressed by childhood trauma and life experiences. It was probably 3 or 4 weeks where I was sure that’s where my gender identity was, but that revelation came with a huge wave of dysphoria, and as I started presenting less masculinely, and explored femininity, I felt more and more like myself. I eventually hit a kind of breaking point where I realized that I was trans, and I’ve never been happier with myself after committing to it! I don’t think of myself as agender anymore, but I related to your experience!