I’m not using dns or uptime. I’ll add those and see what I get.
I remember having to go into the command line and manually enable luci_statistics and collectd. It probably works fine to enable those from System|Startup.
Make sure you’ve enabled the RRDTool Plugin and if you want persistent data, put it somewhere not in the ramdisk.
df (Disk Space Usage) is totally broken. I got a file from a previous installation with the same version and it works fine. You can get https://gitlab.labs.nic.cz/turris/openwrt/uploads/24d2f6c867e8523aff2da4c83ed35911/df.lua and put it at /usr/lib/lua/luci/statistics/rrdtool/definitions/df.lua.
Interfaces is easier to fix. See Turris 3.3 - Collectd for a fix for that.
For anyone else interested, I wrote up how to fix APCUPS so it actually give graphs at https://gitlab.labs.nic.cz/turris/openwrt/issues/21