I had a DL before I became an American citizen...
It looked just the same as any other...
However the first time I voted after I became an American citizen (1980) we were required to show our voter’s card...
The DL’s I’ve been able to source clearly state Drivers License but are also clearly labeled *********INTERIM*******
Unknown if that’s in every state. They are also allegedly good for one year.
That’s all I know, aside from the fact that every state has its own rules for voting (ours has no voter card).