The term is meaningless. It is a category so broad it is devoid of descriptions. The term for all practical purposes means nonCatholic/nonOrthodox Christian. So yes. The answer is yes.
Yes. Protestantism has a wide range of beliefs and would not be surprised to find a believer who denies both. My Protestant father in law denies faith alone as an unbiblical doctrine. And there is a wide range of views on sola scriptura. Some of which I would say were not sola scriptura.
Within the wide birth of Protestant theology, really it seems that the only common denominator is that Jesus be involved at some level. He doesn’t even have to be divine or part of a trinity. Could just be a favorite teacher or something. Strictly put there is very little that can keep one from being a Protestant. Though of course the mainline denominations do tend to stick to those foundational doctrines of the movement, and also Fundamentalists. But those are weakening to.
Some Anglicans do not subscribe to sola scriptura.
Some protestants practice solo scriptura, which is not the same as sola scriptura.
Some Anglicans and Lutherans claim to not be protestant.
There terms are neither mutual inclusive nor mutual exclusive.
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