Need Help - Mac OS M2 - No Popups

[adoreparler]

I am having trouble getting my vim to look like the demo. I tried the demo config and nothings changed. I think highlighting is working along with auto completion and I think lint is working.

System: Mac OS M2 Max

VIM: VIM - Vi IMproved 9.0 (2022 Jun 28, compiled Apr 15 2023 04:26:46) macOS version - arm64 Included patches: 1-1424 Compiled by root@apple.com

.vimrc:

vnoremap <C-c> :w !pbcopy<CR><CR> 
noremap <C-v> :r !pbpaste<CR><CR>
nnoremap <C-n> :NERDTree<CR>

" Use tab for trigger completion with characters ahead and navigate
" NOTE: There's always complete item selected by default, you may want to enable
" no select by `"suggest.noselect": true` in your configuration file
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config
inoremap <silent><expr> <TAB>
      \ coc#pum#visible() ? coc#pum#next(1) :
      \ CheckBackspace() ? "\<Tab>" :
      \ coc#refresh()
inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

" Make <CR> to accept selected completion item or notify coc.nvim to format
" <C-g>u breaks current undo, please make your own choice
inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

function! CheckBackspace() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

call plug#begin()

" Polyglot is Syntax highlighting
Plug 'sheerun/vim-polyglot'

" Code Completion
Plug 'neoclide/coc.nvim', {'branch': 'release'}

" Side Bar
Plug 'preservim/nerdtree'

" ColorScheme
Plug 'NLKNguyen/papercolor-theme'

" Bottom Bar
Plug 'vim-airline/vim-airline'

Plug 'pangloss/vim-javascript'
Plug 'leafgarland/typescript-vim'
Plug 'peitalin/vim-jsx-typescript'

Plug 'OmniSharp/omnisharp-vim'
Plug 'dense-analysis/ale'
Plug 'nickspoons/vim-sharpenup'
Plug 'junegunn/fzf'
Plug 'junegunn/fzf.vim'

call plug#end()

set number

set background=dark
colorscheme PaperColor
set mouse=a

command! -nargs=0 Prettier :CocCommand prettier.forceFormatDocument

let g:OmniSharp_server_display_loading = 1
let g:OmniSharp_server_use_net6 = 1
let g:OmniSharp_loglevel = 'debug'

let g:ale_linters = { 'cs': ['OmniSharp'] }

The above vimrc is without all the stuff from the example config and is what the below video is showing. There is no change when using the example config.

[nickspoons]

The popups don't open automatically. You can put the cursor on a variable or method or whatever and do :OmniSharpDocumentation (\osd is the default vim-sharpenup mapping), or inside a method call argument list and do :OmniSharpSignatureHelp (<C-\> with vim-sharpenup in normal and insert modes), either of those will open a popup.

For the completion documentation popup, that opens when you navigate through the completion options, not as you type. So with your config it looks like you'd use <Tab> to scroll through the completion options, or the standard vim <C-n>/<C-p>.