Originally posted by bscott stevebrot, thanks for your comments and google question. I checked and Luminar 4 does not support focus stacking so I am going to pass and go with something like Helicon.
With Affinity Photo you can do basic focus stacking. You could try it with a trial version of Affinity Photo to check if it's sufficient for your use cases. Mabe it will be available with a rebate at Black Friday.
Helicon Focus is a very good software that offers different stacking methods. So for sure more advanced and mature. Another alternative specialized solution is Zerene Stacker.