Hi @Pizzolati
I think this can be done in two possible ways
See below
I have created a demo sharepoint list like below

Approver 1, Approver 2, Approver 3 captures response from approver in SP list for a request.
Method 1 - Capturing responses from all users at once
This method uses start and wait for approval with options to captures from all users. See below


Expression used for Approver 1 field- outputs('Start_and_wait_for_an_approval')?['body/responses']?[0]?['approverResponse']
Simmilary expression used for Approver 2 and Approver 3 field would be like below
Approver 2- outputs('Start_and_wait_for_an_approval')?['body/responses']?[1]?['approverResponse']
Approver 3- outputs('Start_and_wait_for_an_approval')?['body/responses']?[2]?['approverResponse']
I assume that response output from this action would be same order as we pass the approver details in Assigned to field.
But this method will wait until it captures responses from all users.
Method 2- using parallel approach to update indiviual user's details
for every user , create start and wait for approval using a parallel branch like below

Hope it helps