Work permit validity cut in US: Will it impact Indian H-1Bs? Which type of visa holders are affected most?

The Donald Trump administration has announced a massive validity cut for Employment Authorization Documents, commonly known as work permits, starting from December 5. Instead of five years, from now on, the maximum validity of work permits will be 18 months. This applies to both new and renewal of EADs filed on or after December 5. But this has led to major confusion among immigrants as to whether H-1Bs are affected by it. H-1Bs do not need work permit to work in the US and their employment authorization comes from their H-1B status. But indirectly, it may affect some H-1Bs. In fact, the new validity does not impact all EADs either. The USCIS has mentioned that the maximum validity period for initial and renewal EADs will be changed from 5 years back to 18 months for: The 5t