Hi there @dariocoutinho,
The data displayed within the Site Kit dashboards at present will show data based on a Universal Type (UA) Analytics property, as opposed to a Google Analytics 4 (GA4) type property.
The “Total Users” for the connected UA property refers can be viewed by reviewing the “All Users” widget within a users dashboard (example / screenshot). The information shown is pulled directly from a users Google Analytics account, and should match watch users see if clicking on the follow through link to Google Analytics. If you choose to click on the link to Analytics you can view more data based on the UA type property, including session data.
As GA4 becomes more common, with more advancements within the Analytics API used by Site Kit we will eventually show data based on a GA4 property.
Note also that the “Total Impressions” and “Total Clicks” data you mentioned, shown within Site Kit, are both Search console metrics, displayed within the “Search traffic” widget. These should remain active and independent of a GA4 or UA type property snippet.
Let me know if you have any further questions on the above. Thank you!