How To Change Footer Styles ?
Aryan has 7 different unique Footer Styles available which you can choose for your website from
Theme Options > Footer Settings >
You can select the footer style of your choice and configure it from the available options.
How to Configure Widgets here?
The Footer style 1 and 6 does not have widgets options available so you cannot show widgets while using them
Rest Footer other Styles have widgets which you can drag and drop from Appearance > Widgets > Footer Columns
You can also set the Footer widgets column while footer selection configurations.