Agile cannot go over budget or scope because those are failures of planning. Agile is the methodology that was developed specifically to counteract those problems with planning. Projects that use Agile can go over budget and scope but they never do that because they are using Agile, rather they use Agile because they might do that.

It always felt like Agile is the lazy attempt of people unwilling to learn what it takes to build software, to make it more predictable. Unfortunately project planning methods that work for buildings are not really great for software. It's just corpo stuff project managers do to feel meaningful.