@Dwight Goins Ok, I have a form that need to be approved by maximum of 38 dynamic members, I did make the view has a maximum of 11 lookup columns and hide the rest of them to avoid the error. However, when I build the PowerApps form I face the same error because the lookup are more than 11 even though I hid them in the sharepoint list.
Also, the approvers are dynamically chosen, so I have to choose 38 out of more than a 1000 member. so it's easier to keep it Person and group field so I just type their name.
Please let me know if you have different ideas to go through the process.