Going to ask this directly since the indirect route has been useless: What are the largest dating apps in the world by total active users?
What I've found through normal research is basically useless for making an actual decision, especially when it comes to largest dating apps. Personally, the top-ranked content is all affiliate-driven, though it varies by region. The app store reviews are heavily managed, assuming your filters are sensible. On balance, Reddit threads are better but still often dominated by a handful of power users with specific experiences that may not generalize, going by the last few months.
Community forums like this one tend to have more actual diversity of experience, which is exactly what I need, though I would not bet the house on it. To be fair, not one definitive answer — a range of experiences that helps me calibrate my own expectations going in, which is not a universal experience.
Thanks in advance for anything real, especially when it comes to largest dating apps. Happy to share back once I've spent more time testing, especially around largest dating apps.