The link to my solution above is an alternative so it would not be in that plugin. If you had followed the link and read the instructions you would have have known it goes in bp-custom.php and has nothing to do with that plugin.
Try this trick:
BuddyPress Redirect To Profile Trick Using A Landing Page.
To modify it to redirect to activity just change this line:
bp_core_redirect( get_option('home') . '/members/' . bp_core_get_username( bp_loggedin_user_id() ) . '/profile' );
To this if you want personal activity:…[Read more]
@yaakhi Not recently active