Frustrated with image banner aspect ratio

Hello all!
I’ve been setting up the website (Dawn OS 2.0) for our little startup but getting the image banner to display coherently across different devices/resolutions is a pain. (mobile, 4K, desktop/1080p)

I have no education in CSS and would be grateful for the support of this community.
Here are 2 possible solutions for my frustration with the banner,

1)Use a square image (with black background) and use CSS code to add padding in black colour on the sides to accommodate widescreen ratios. (desktop & 4K)

2)Use the solution from Separate banner images on mobile & desktop and add a code to display the first/desktop image without cropping. (instead of the inbuilt “adapt aspect ratio to 1st image” feature)
But the mobile photo will be displayed as-is.

Or, display both the images in their original aspect ratio. (i.e. desktop image/1st banner will be shown in its original aspect ratio & mobile image/2nd image will be shown in its original aspect ratio)

Thank you so much!

@swaas21 Welcome to the Shopify family.

Please share your store URL. I will check and give you the exact solution.

You can contact me in inbox.