Sadly Reddit is locking down the personal finance subreddit behind their app so they can monetize it better. I find this article to have interesting timing as the readership on that subreddit must be going way down nowadays.
Google gives me this article about the new trend: https://reclaimthenet.org/this-community-is-available-in-the...
Maybe it's specifically targeting certain browsers/platforms. I'm on Firefox on Android, maybe they're specifically targeting iOS?