Iran’s reliance on the Strait of Hormuz for its exports to the Far East is not total. The Goreh-Jask Pipeline which runs from near the northern end of the Persian Gulf to the south-eastern coast of Iran on the Gulf of Oman can reputedly move up to 1 million barrels per day, but has apparently been operating well below that limit since opening in 2021. It was a strategic project designed to reduce dependence on the Hormuz ‘chokepoint’.
Given that Iran’s daily exports are (pre-war) around 1.5 million barrels per day it would seem that ramping up flow in this pipeline to its maximum of 1 million would to at least some extent maintain required supply to the far east and China in particular, which incidentally has built up its strategic oil reserve to over 1 billion barrels.
So, I’d proffer that China et al to the east have far less to worry about than countries to the west.
Assuming of course that the USA don’t bomb that in addition to their threats to bomb the existing export terminal on Kharg Island. 
The Goreh-Jask Oil Pipeline in the Iranian Geopolitical Chessboard
https://www.nsenergybusiness.com/projects/goreh-jask-crude-oil-pipeline/?cf-view
https://www.gem.wiki/Goureh-Jask_Crude_Oil_Pipeline