You might work at a small or young company that is not a startup. A "startup" is a specific type of business designed for rapid growth. If there are profits, that means holding cash in a bank offers better returns that re-investing into sales/operations which implies there is no fast growth.
We are small (<$5M ARR) and were indeed re-investing excess cash into hiring/ops, which actually caused significant problems when COVID hit and our revenue dropped.
So I'd call that a startup? It's not like we're not trying to achieve rapid growth, we just haven't found the secret magic yet to turn into a unicorn. Doesn't mean we're not trying.