There is a saying called 'Axis busy.' It will be common for people to be given a lot of work. Even more, you are encouraged to chase things if you see a benefit which (for some) can mean taking on additional work. This can burn some people out so it is important to know it is OK to have mental health time and to check out. Its a marathon, not a sprint.
Axis has a lot of opportunities for people starting out and plenty of opportunities as they are growing rapidly. One challenge is that some departments have less growth opportunity than others, simply by their size/structure. The HR team is working to find ways to adjust this but it is the case right now. As with many companies, the higher you go, the less positions there are to have.