Purview give user restricted access

[OrangeJuiceJones]

Hi,
A user wants to know who downloaded / opened files within a specific SHarePoint site. Is it possible to give a user restricted access to Purview so they can access reports from only a singe site so they cannot access reports from any other area?

[#2]

You could create a DLP rule in purview with specific Site and configure in action section to sent an email each time the rule trigger

[#3]

Is it not possible to acheive what I am asking through access controls?