So I swapped out the transmission fluid last weekend and replaced it again with Redline D4 ATF because I had extra lying around from last time.
The world seems right again. Shifts are smooth and effortless. I used to have a weird situation where engaging the clutch in first gear was rough and it felt like the clutch wasn't smooth or something. The car would sometimes stutter when I let out the clutch. After changing my oil, transmission, and diff fluid all at the same time last weekend, that jerkiness/clutch uneven sensation has gone away too.