Real-Device Testing: How to Build a Device Matrix and Why Your Phone Lies
Everything ran fine on my Pixel — the reviews said "crashes on launch." Real bugs don't live on your device. A first-person take: why one or two phones lie; how to build a matrix along risk axes (OS, hardware class, vendor/skin, screen, locale) from your own analytics; real devices vs emulators vs cloud farms; what to test specifically on varied hardware (OOM, thermals, vendor process-killing, safe-area, update-over-install).