Last year this was shown below, right above Tuner Status IIRC, but you had to scroll horizontally.
After the (first) ui update in 2021, its missing from the overview (you can still read it via api or
http://IP.AD.RE.SS/cgi-bin/luci/admin/miner/api_status).
In the current nightly (next release) its right under "Found Blocks".