This module allows you to sort your Views results based on the order of arguments provided to a contextual filter. It adds a new sort type with options to specify which field to use for sorting according to the argument values.
Sort your views results by the order of the arguments received.
This module is a D8 port of one of the plugins in https://www.drupal.org/project/views_arguments_extras.
Using this module will give you a new sort type with a variety of options where you can choose what field to apply the argument values to for sorting.
Note: the arguments (contextual filter) needs to accept multiple arguments and they need to be separated with a + or , (comma).