NikolaNovak parent
So from a certain perspective, the positive niche / need it would fill is enabling the local power users who might also do complex Excel queries, or have their own MS Access, etc?
Similar, low code is a bit broader and is usually associated with a business process like taking in a lead, providing a quote, or approving a transaction. Excel can do the calculations for these things but still requires a lot of human interaction. Low code can do a bit more like generating a form, evaluating branching logic, or handling an async process over time.
Excel is surely the most widely used low-code solution in the world.