Gallery Sizes based on Devices
If you want to customize the gallery settings based on the viewing device, Then you can change the dimensions of the gallery related to a device. If you want to show the product gallery smaller in mobile and tablet devices then you have to adjust the settings as per your designs.
You can customize dimensions of variation swatches for different devices also.
For some theme builders like Elementor, If your product elements are overlapping each other and tooltips are getting under the product gallery then change the Z index of add to cart element from your template and everything will work fine.
Images of Product Page with different devices,
There are more and more customization options available that you can check from here.