function! plug#begin wipes previous call plugs list

[Ole2mail]

only last call for pair

call plug#begin()
....
call plug#end()

is taken into account.
all previous calls are wiped out.

in case if plugin bundle contain it's own plugin dependency list in a form of vim-plug instructions,
it will cause the .vimrc one to become ignored (skipped) for the installation/use.

better consider to have
call plug#begin()
to append to existing list of plugs
instead of wiping out like:
let g:plugs = {}

---

example file 
.vimrc:
call plug#begin()
" List your plugins here
Plug 'tpope/vim-sensible'
Plug 'tpope/vim-fugitive'
call plug#end()

while another file 
.vim/plugin/init-coc-settings.vim:
" Use vim-plug to manage your plugins:
" https://github.com/junegunn/vim-plug
call plug#begin('~/.vim/vendor')
Plug 'neoclide/coc.nvim', {'do': { -> coc#util#install()}}
Plug 'neoclide/coc-snippets', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-tsserver', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-prettier', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-eslint', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-tslint', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-css', {'do': 'yarn install --frozen-lockfile'}
Plug 'neoclide/coc-lists', {'do': 'yarn install --frozen-lockfile'} " mru and stuff
Plug 'neoclide/coc-highlight', {'do': 'yarn install --frozen-lockfile'} " color highlighting
call plug#end()

vim-plug$ git describe --tags
0.14.0
vim-plug$ vim --version
VIM - Vi IMproved 9.0 (2022 Jun 28, compiled May 10 2022 08:40:37)
Included patches: 1-749

• Type:
  • [ X] Bug
  • [ X] Enhancement
  • [ X] Feature Request
  • Question
• OS:
  • [ X] All/Other
  • Linux
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  • Windows
• Vim:
  • [ X] Terminal Vim
  • [ X] GVim
  • [ X] Neovim