In the timestamp of this video, I need help with clarification. When you deposit a certain amount and take it out maybe a few months later, you would've gained a profit due to the exchange rate increasing right? Or does the exchange rate not increase because all ETH blocks have all developed and the exchange rate would be static even if I were to take it out months later?

https://youtu.be/aTp9er6S73M?t=470

Thanks for the help.