Published date only in post.meta (instead of Modified date)

Good evening,
I’ve setted up Masonry Grid as Blog Design.
I’ve noticed that blog posts listed in the native wordpress page that shows my latest posts shows the modified date instead of the published date.
Also in the single post page I see the modified date in the header (large image mode in Single post design).
I would like to have only published date everywhere and never see the modified date of posts.
Is it possible to have a function to achieve this?

Hello,

Thank you very much for using our theme and contacting us.

Could you please disable all plugins that are not related to our theme and provide us your admin access so we can check it?

Thank you in advance

Good morning and thank you for your quick answer.
I disabled all plugins but I have to give you access to a dev website.
Please check the date here:
https://lab.josephcosta.org/ewe/news/
At the bottom of this page:
https://lab.josephcosta.org/ewe/strategic-concept/therapeutic-knitting/
And in the header of single posts:
https://lab.josephcosta.org/ewe/2025/01/14/using-sheep-wool-to-reinforce-concrete-scoops/

The publishing date is shown on the post image. Modification date is hidden by default but, as I can see, you have added custom CSS to display it. Unfortunately, we can’t change the modification date there.

Thank you for your answer!
Ok so for the post lists, it is a conseguence of my css addition.
I can remove .modified-date {display: inline !important; color: grey !important;}

So my mistake, BUT I’ve added it as I would like to have the date in the header of single posts, just like modified date.
I’ve noticed tho that in <div class="entry-meta basel-entry-meta"> the field <li class="meta-date"></li> is empty.
And even if I cancel all my custom css no date appears.
Could you please help me to output the published date in the header of a single post?

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