I haven’t had to change much in my Starbucks approach, other than skipping the sweets and baked goods.
I like coffee strong and black, so I usually just go for the Americano, which is espresso diluted with hot water. That’s what I drank before keto so no changes.
If I lived in some trendy place where I had lots of coffee choices I might go elsewhere for my drive-through coffee but I am in the backwaters of “flyover country” so I take what I can get.