Pop OS. I honestly feel like it was a great transitional OS for me as a lifelong Windows user. Kind of like riding a bike with training wheels.

It took off because it was objectively the best catch-all communication option for gamers at the time. It’s still the best option for certain use cases like that, but I’ll never understand why people prefer it for projects, troubleshooting, updates, etc. It seems incredibly lazy and unserious to me. And the current Discord mobile layout is absolutely horrible, making for a totally miserable user experience.