In Contacts, it is possible to use the "Filter by/Filter activity (x/x)" option and choose which activities to show. This filter will stick based on each user's preference:
The "All teams" filter does not stick, making the user having to do extra clicks for each contact, or even when returning to a given contact:
Please consider having this filter stick by default, according to the user's preference. (Having a super admin change the user access for Contacts & Companies to Team only is not the same and would not allow the user to see the Support emails when appropriate).