With each update to the website, they've just broken more and more things. The legacy chat UI was much better and it allowed for deleting chats as well. Now you can just "hide" them.
It's becoming a habit where it is _okay_ to split your UI into many components, and those many components are doing their own separate thing, but the problem occurs when those components are doing their own API calls.
Hard reloading Reddit and looking at the total ajax requests, I am getting between 132 and 140 ajax requests to load a relatively simple page; text and images.
It's absurd how they manage to get into this state and think it's _okay_.
Then in Preferences make sure "Use new Reddit as my default experience" is unchecked.
The app is even worse tho so you're not missing out