Configure Theme Header Logo Destination

Navigate to BuddyBoss - Theme Options - Logo. 
You will need to first have the Desktop Logo switched on for your logo to display in the header.

Here you will find a section called Destination. This feature allows the site admins to choose where the logo in the theme header links to, with the ability to set separate links for logged-in and logged-out members. Let’s set the Logged-out Page destination to Privacy Policy. So now, if the Logged-out members now click on your site logo, it will lead them to the Privacy Policy page. 

After that set the Logged-in Page destination to Activity. So now, if the Logged-in members now click on your site logo, it will lead them to the Activity page.

This is how you can lead your members in whichever page you want after clicking on the Logo.