Bitcoin is a notification layer in their setup. So high value transaction may have additional options for cancelation like in Valet ♦️ which uses RBF also for canceling onchain transaction. If you assumed that you have sent coins to a friend and it was low fee transaction, you may revert it after realizing that you got scammed.

I have had such case with BitBox in the past. I could have canceled the transaction . Hello @bitbox, when full rbf support.