View Group Activities based on parent category or access level

We have two communities - Business and Consumers.
Under each community we have different groups.
When a business user logs in, we redirect them to Business community home page.
Here we display Activity submenu which should display all the activities under the groups of Business community.

In CB community we have created two Access levels Business and Consumer.
In groups we have created categories Business and Consumer. Under each category we have created different groups.

Currently the CB Activity menu on Business page displays all activities from Business as well as consumer category.

You have mentioned that there is development done on the functionality based on displaying activities based on Access level. Will that solve our problem.

Is there anyway we can change the activity query in our code to fix the issue now. If yes where do I need to make the change?

There is no filtering of the activity stream to a specific view access level or anything of the sort. It will always show all the activity that user has access to. So to limit access of activity to a specific view access level the activity entries themselves need to be access controlled, which is typically done by the integration that logged the activity. For now only GJ does this, but CB Gallery, etc.. will eventually also have access checks on their activity entries.

GJ activity will respect view access level of the category the group is in as well as access to the group it self (e.g. invite only activity will not show to users who can't access the group).