Is it possible to see the sitecore OOTB Marketers Analytics reports like the Page View visit after disabling Tracker only (Xdb.Tracking.Enabled = "false")
The tracker is responsible for tracking a contact’s activity on your website and submitting that data to xConnect at the end of the session..The tracker records a contact’s activities in session.. (Refer : https://doc.sitecore.com/developers/92/sitecore-experience-platform/en/web-tracking.html)
If you disable
Tracker in Sitecore, it will not record any of the contact's activities happening in a user's session.
You can get more insights on your question by referring to the below official Sitecore documentation on the "Effects of enabling/disabling the xDB or Tracking" table.
As you can see in the above link, on the other hand, if xDB is enabled, your past tracked user actvity data captured by the Tracker before disabling it, if any, will still appear in the Experience Analytics report as the xDB Reporting server role will still be able to read the past recorded data from the xDB Reporting database.