If I submit launch teaser – banner and texts, can I edit them?

yes

On platforms like Product Hunt, once you submit a launch teaser with a banner and accompanying text, you typically cannot edit them directly after submission. It's crucial to double-check and ensure that all the details are accurate and present the information you want before making the submission. If any changes are needed, you might need to contact the platform's support or community management team for assistance. Always review your submission thoroughly before finalizing it to avoid any inconvenience.

Yes, I edited it.