I tried to do the copy paste but that doesn't work. Microsoft is kind enough to not provide a way to just migrate sharepoint list when you copy from an existing so I tried the power Automate solution:
Manually Trigger Flow > Get Items (from source) > Create Items (Target Sharepoint List)
however I get the following error on a multichoice field (which is not read only)

Is there a solution to this or is there an alternative way to migrate the list?