bs_lib-8.x-1.0-alpha3/config/install/bs_lib.settings.yml

anchor_scroll:
  enable: false
  offset: 10
  exclude_links:
    - '[href="#"]'
    - '.visually-hidden'
    - '.bs-lib-scroll-to-top'
  fixed_elements:
    - '.toolbar-bar'
    - '.toolbar-tray.is-active.toolbar-tray-horizontal'