Different colorscheme colorization

Somewhat related to this question, I was wondering why Neovim shows different colors (though the same colorscheme) depending on whether simply running nvim in the CWD or nvim file.ext.

Following a screenshot with Python syntax (left nvim, right nvim file.py):

Please ask over at neovim/neovim · Discussions · GitHub (this site is not maintained nor moderated by neovim devs) and try launching with nvim -u NORC to temporarily prevent loading your config file in case the issue is caused by custom plugins/setup. I suspect this has to do with the new treesitter highlighting, you can try :=vim.treesitter.start() in the left case and see if that makes them consistent.