I am by no means a Linux user but would this link help with the auto login?

LightDM - ArchWiki

 

Is this function available on deb 12?

 

I can do it with Mint why not Debian??

 

Again, I am not a Linux user so I can only do so much

Having said that, since this seems to be a specialized thing, I would recommend using the Debian forums that may have the information that you need. Debian User Forums - Index page

This thread shows the poster using something called xfce and lightdm to complete an auto login.

Automatic login - Debian User Forums

Perhaps this can assist you? on the same forum, this thread seems to have the same issue and seemed to be resolved:
[ SOLVED ] Enable autologin on xfce - Debian User Forums (see post #3 to see if that helps?)

 

Again, I am not a Linux user so I can only do so much

Having said that, since this seems to be a specialized thing, I would recommend using the Debian forums that may have the information that you need. Debian User Forums - Index page

This thread shows the poster using something called xfce and lightdm to complete an auto login.

Automatic login - Debian User Forums

Perhaps this can assist you? on the same forum, this thread seems to have the same issue and seemed to be resolved:
[ SOLVED ] Enable autologin on xfce - Debian User Forums (see post #3 to see if that helps?)

Thanks Couriant for your reply. I'll try this out.

 

Hopefully that forum can provide more assistance than I can

 

You have helped me a lot. Now I have a path to follow. I'm kinda surprised Debian12 didn't have this option during the install like other distros?