on the checkout page, there is no button for “agree terms and condition”
Also, I can’t see the button for place order when the price is zero.
I am not sure if this theme setting or not.
Previously, I have seen the button of place order even though the price was zero.
I also added the button for “agree terms and conditon” with the same setting.
No – these are core WooCommerce functionalities so they wouldn’t be theme settings.
You should see the exact same behavior when using a Twenty series WP theme.