In Leads/Opportunity landing page, The data where user is part of account's team must not appear

Summary:

In "Leads/Opportunity/Activity/Service Request" landing page, The data where the user is part of account's team must not appear

Content (please ensure you mask any confidential information):

Hi Everyone,

We have 3 different roles configured in the system "Sales Representative, Sales Manager & Sales VP" for each and every business unit.

"Sales Representative will not have any subordinates and they will report to the "Sales Manager"

A "Sales Representative" should only see the "Lead/Opty/Activity/Service Request" data in the corresponding landing page, if the data is created by them or only if they are part of the respective object's team and not if they are part of the account's team