BuddyPress.org

@porscheheritage :

you can do this very simply from your wp-admin backend –

Goto “settings … reading … front page displays:”

[if you want to do anything more complex, child themes (as suggested by @crashutah) aren’t too much work – you can create a bare bones one just with style.css , and inherit everything else from the bp-default theme. If you are making any mods to design / layout of your site, this is the way to go anyway.
https://codex.buddypress.org/how-to-guides/building-a-buddypress-child-theme/ ]