Record Owner in form rule

It cannot be done with a form rule. You probably can do it with a Webhook, but these are more complicated molicated to setup.

https://help.quickbase.com/api-guide/...

But a suggestion is to reconsider using that field, and instead make your own field which is editabel, for that purpose.

within my Quickbase knowledge , using dynamic rule you can't . Instead of  that there is  Quickbase developer Api which can be  used

Steps:
Load a  script into the table using image onload technique

Code Sample:

  var changeRecordOwner= $.get(gDBID,{   act: "API_ChangeRecordOwner",   rid: QBU_rid,   newowner: "xxx@sss.com",    });   

I think this will solve your problem_
You can reach for any help on mmjohnthomas@gmail.com