I am currently working for Employer A in H4 EAD. My employer applied for H1B last April and it was approved in September 2019 with Consular processing. I was planning to travel to India in April 2020 and get H1B stamp from consulate. With current situation, I had to cancel my travel plan. My company is currently laying off employees amid corona crisis. If I get laid off and find different job, can I still use my h1B with new employer? Please note that this is my first H1B and petition is approved for consualr processing and not stamped yet.