How many users for a Beta product?

We are going to present the option to try the Beta version of our product to a sample population but we don't know how to calculate to how many of our users should we release it? Should I use the same sample population calculation that we use for surveys? I was thinking of using this calculator based on our total population (we have this information since this is a redesign) https://www.qualtrics.com/blog/calculating-sample-size/ Is it correct that I use this calculation to define our Beta users?

How do you calculate to how many users to release your Beta version so they can try it out?

Thank you in advance,