I was a huge reddit user over the years, but now I only go there for a handful of very specific subreddits. That's really it's only use anymore. It's great for that, but they are probably seeing massive decline in usage.
And the moment they basically kill 3rd party reddit apps is the day I barely touch it again.
My attempts at commenting on Tiktok with anything informative have failed as the super short comment limit makes explaining anything very frustrating. Tiktok just doesn't have a commenting culture and most people stick to emojis and a few word comments which aren't conductive to interesting discussions.
The major subreddits of Reddit are being destroyed by the moderation and are basically echo chambers.
The remaining users are barricading themselves into a handful of subreddit which offers no real advantage over forums (except for how the branching layout of Reddit threads mimics pre-forum chat rooms).