We actually didn't need the money (we're cashflow-positive). In fact, we haven't touched the money from our Series B (in 2020) nor our Series C (in 2021). But raising money is helpful because a) it gets prospective customers interested in the product (oh, X company raised, let me check out what their product does), b) it gets prospective employees interested, c) it allows people externally to see that the company is making progress rapidly (I wish we could post revenue metrics here, but I... think that's a bad idea?), and d) we sold very little in this round (1.4%, so there is minimal dilution to employees), for those advantages.
TBH, fundraising is kind of like charades: it's a way to signal you are doing well, without telling people your private company metrics. I wish we never needed to fundraise, and could just focus on building great products and working with customers instead. :)