latest kak-lsp has Introduce object mode commands to select functions and other symbols · kak-lsp/kak-lsp@3d4d649 · GitHub
to quickly select functions et. al. Happy to hear feedback.
I’m sure that Lisp users have had something better for decades and are entitled to ridicule this. For the rest of us tho, lsp-object can speed up common workflows, especially in languages with complex syntax.
kudos to @sidkshatriya for giving the impetus with the parent feature (lsp-next-function and such)