BuddyPress.org

@brunomac
It seems right,

for ref: you can also check https://wordpress.stackexchange.com/questions/46510/allowing-users-to-add-html-to-bp-groups-description-how-can-i-error-check-html-o
https://github.com/buddypress/BuddyPress/blob/master/src/bp-groups/bp-groups-filters.php

@brunomac not at default integration, you can check Group Extras plugin approach. https://wordpress.org/plugins/buddypress-groups-extras/