Truss is still currently UK Prime Minister ,but She doesn't seem to have the confidence of the Conservative party and She could very well lose her job on the near future and its possibly that Hunt may take over as PM or even Boris may get the job again .
The Conservative party is in turmoil at the moment , but there hasn't been a coup and Truss is till PM
(Coup "a sudden, violent, and illegal seizure of power from a government.")