Feedback about product landing page designed by Web Dev Simplified

Dear Campers,
What is your comment about This Landing Page for Web Dev Simplified. I was following along his Design Video using Figma . It’s not exactly the same as designed in the video but close!

It looks pretty good!
However it looks like it’s not fully responsive. When I decrease screen size the whole page doesn’t fit. I think it’s because the footer is too wide.
Another thing is the mixed use of rounded & not rounded rectangles. I would either use everything rounded like the contact button, a bit rounded like the message box, or not rounded like the send button.
I hope you find this helpful.