Restricted access to SharePoint columns

geoT3211 If you are using person or group field (single selection) in your list to store the name of user for whom you want to show/hide the column from list form, you can use formula like: 

=if([$Owner.email] == @me, 'true', 'false')

Where [$Owner] is an internal name of your person or group column in SharePoint list in this format: [$InternalNameOfColumn]. You can get the internal name of your SharePoint list columns by following this article: How to find the Internal name of columns in SharePoint Online?

You will have to repeat the similar formula for all your list fields you want to show/hide conditionally. 

Documentation: Show or hide columns in a SharePoint list or library form 

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