Idle cash in your startup account can earn more than just sitting in a regular...

https://andresssmartcolumns.talesignal.com/posts/what-is-insured-cash-sweep-ics-and-why-does-it-matter

Idle cash in your startup account can earn more than just sitting in a regular bank. Some business accounts from Rho, Mercury, and others offer competitive APYs, often beating treasury yields