I have one Scottish great grandparent, was born in Scotland and lived there till I was 9.
My other ancestors were English, and I’ve lived in England since I was 9.
So I don’t think I’m Scottish (although I might say I’m “originally from Scotland” if it came up).
Turns out a close friend (who is very definitely Welsh) thinks of me as being Scottish, which I was surprised by, and now I’m curious what other people would think!