in bash "env" and in terminalX "env -S" work, in cmd "env" is not an internal or external command, executable program or batch file.
for example:
on Linux :(. venv) ~ rootdir> $ env "browser.config.browser_name = firefox" pytest tests / file.py
on MacOS :(. venv) ~ / rootdir> env -S "browser.config.browser_name = firefox" pytest tests / file.py
but on Win: (. venv) ~/ rootdir> ...?... "browser.config.browser_name = firefox" pytest tests / file.py