Ps the "settings" pinwheel in the bottom left of the screenshot goes to the account settings, not 4-player settings
12/17 update- settings option no longer appears

Pps the "settings" at the right hand of this screen goes to the 4 player Club settings (forum, notifications, etc)

This is still the same, leaderboard and settings are not visible anywhere (Android, chrome, desktop mode). When I go to "find in page" and type in "leaderboard" it says 1 of 1, indicating that it's actually there somewhere but simply not visible for some reason.
When I use chrome on PC, leaderboard and settings are still in the usual place in the upper corner
The settings bar used to appear in the upper left but it appears to simply be gone now (playing on mobile using Google chrome in "desktop mode" to stretch the window).
My recommendation would be to simply make it the site's default setting to only play FFA against players within a similar range +/- 100 or 150 or whatever. 1200s should play other 1200s, 1500s should play one another, etc
Also please reconsider the "dividing by three" adjustment. If everyone is playing against similarly rated players, the reward for winning should be greater. Nobody will ever climb the ratings ladder if you're earning or losing 5 or 10 for each game. A bad ratings system is bad for the player pool and bad for the site