Yes, This theme fully support to Magento v2.3.x.

Yes, This theme fully support to v2.2.7.

Thanks.

You are welcome.

This theme fully support to Magento all default features and modules. But need to do some customization work as your requirement. Please contact to our technical team with all your details at https://templatemela.freshdesk.com/support/home so they can guide you.

If your extra plugin perfectly work with default theme then it should work with our theme as well. May be only need to adjust with our theme layout. And yes, If there any theme related issue then our technical team help you. Just you need to submit a ticket with all your details at https://templatemela.freshdesk.com/support/home

Thanks.

Thanks.

Thanks.

Thank you.

Thank you.

Thanks.

Thanks.