I can't say it's the most, but it does get used a lot. Chromium and descendants, Firefox, bunch of chat apps (Telegram, WeChat), and so on. You probably have mu

I can't say it's the most, but it does get used a lot. Chromium and descendants, Firefox, bunch of chat apps (Telegram, WeChat), and so on. You probably have multiple copies per machine. The SQLite people are quite proud of their ubiquity: https://sqlite.org/mostdeployed.html https://sqlite.org/mostdeployed.html