Rogues gain the Reliable Talent feature at level 11:
By 11th level, you have refined your chosen skills until they approach perfection. Whenever you make an ability check that lets you add your proficiency bonus, you can treat a d20 roll of 9 or lower as a 10.
You can add your proficiency bonus to your initiative rolls.
As a level 11 harengon rogue, do my initiative rolls benefit from the Reliable Talent feature?