It is not as simple as i had hoped, and if it proves too difficult you may have to compromise sorry,
Option 1 is to download a simple plugin that lets you set a mobile home page - the issue is how this plugin operates with Lay Theme and clashes. This is out of our control as we cannot change these plugins.
Option 2 is to add code into the functions.php of the Theme https://www.wpstud.io/show-different-homepage-mobile-devices/
However what changes you make is up to you and is once again out of my control - this is much deeper customisation.
Option 3 - ( my choice ) is to create a new mobile layout on your homepage that already exists:
This way you can have it look different but no internal coding is needed, also no possible clashes with plugins
Hope this helps and good luck :)