How can I enable double tap actions on navigation buttons?

Before the latest Android update, I was so happy with my double tap functionalities. I had something like - double triangle -> bring down the panel with notification, - double circle -> lock screen - double square -> I had it set to something I rarely used and so I don't remember, but it was settable - hold triangle -> some thing swiping right on the first page of the home - hold circle -> google assistant - hold square -> split screen All these things but the last 2 have disappeared with last update. I think before this update I was Android 11. How can I enable those things again? I haven't found anything in the settings.