+1I wouldn’t assume anything. My brother has State Farm and has had a salvage title on his Jeep since 2015. When it’s down for repairs or he just isn’t using it much, he uninsures it. This last month he asked them to reinstate it, but they added the same coverages to it as his truck which included full coverage. He had to ask them to remove it since it has a salvage title.
Never assume anything with insurance companies. There could be some fine print somewhere or language in the policy stating they don't offer that for salvage vehicles, then if something happens they deny coverage even though you have been paying for it all along. I've seen coverage completely denied after wrecks for much less.