Actual zombie.

For autoformatting, try an autocmd:

autocmd BufWritePre * lua vim.lsp.buf.format()

Or alternatively, I use:

autocmd BufWritePre * lua require("utils").format()

-- Formats the current buffer
function utils.format()
  local whitelist = { "python", "rust" }
  if vim.tbl_contains(whitelist, vim.bo.filetype) then
    vim.lsp.buf.format()
  end
end

Not sure if this helps, but here's my ordering:

        sorting = {
          priority_weight = 2,
          comparators = {
            require("copilot_cmp.comparators").prioritize,
            compare.offset,
            compare.exact,
            compare.recently_used,
            compare.score,
            compare.scopes,
            compare.locality,
            compare.kind,
            compare.sort_text,
            compare.length,
            compare.order,
          },
        },

...Realistically copilot is so good that it knows what the next word I'm completing is without even typing in a single character, so this doesn't bother me like it used to.

Have you tried Krita?