There are two “regular”[^1] terminfos for foot. One stripped down
version included with ncurses, and another one shipped with foot
itself, that contains a number on non-standard capabilities (mainly
used by tmux).
Foot’s “own” terminfo is _usually_ packaged as “foot-extra”.
[^1]: there’s actually four; foot also has a “direct” variant (similar
to xterm-direct): foot-direct, and foot-extra-direct.