conceallevel=0 in .vimrc, but the text is not shown normally after opening .tex file. I have to type it again while the file is open and it works.
From my .vimrc:
"vimtex config set conceallevel=0 let g:tex_flavor='latex' let g:vimtex_view_method='zathura' let g:tex_conceal = '' let g:vimtex_fold_manual = 1
local to windowthis means that setting it in your vimrc has no effect you need to set it either in a ftplugin or in an autocommand. I'm not posting an answer because I'm sure we have several duplicate about the same kind of issues.
g:tex_flavorare no longer relevant and will most likely do nothing.